diff --git a/activity_browser/__init__.py b/activity_browser/__init__.py
index 1c1cf6999..9a644d50d 100644
--- a/activity_browser/__init__.py
+++ b/activity_browser/__init__.py
@@ -3,8 +3,8 @@
 import sys
 import traceback
 
-from PySide2.QtCore import QSysInfo, __version__ as qt_version
-from PySide2.QtWidgets import QApplication
+from PySide6.QtCore import QSysInfo, __version__ as qt_version
+from PySide6.QtWidgets import QApplication
 
 from .application import Application
 from .info import __version__
diff --git a/activity_browser/bwutils/calculations.py b/activity_browser/bwutils/calculations.py
index d9f4c53b2..e54b2eeaa 100644
--- a/activity_browser/bwutils/calculations.py
+++ b/activity_browser/bwutils/calculations.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-from PySide2.QtWidgets import QMessageBox, QApplication
+from PySide6.QtWidgets import QMessageBox, QApplication
 
 from ..bwutils import (
     Contributions, MonteCarloLCA, MLCA,
diff --git a/activity_browser/bwutils/multilca.py b/activity_browser/bwutils/multilca.py
index cb80b54af..50f136d54 100644
--- a/activity_browser/bwutils/multilca.py
+++ b/activity_browser/bwutils/multilca.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 from typing import Iterable, Optional, Union
-from PySide2.QtWidgets import QMessageBox, QApplication
+from PySide6.QtWidgets import QMessageBox, QApplication
 import numpy as np
 import pandas as pd
 import brightway2 as bw
diff --git a/activity_browser/bwutils/superstructure/dataframe.py b/activity_browser/bwutils/superstructure/dataframe.py
index d593be4ba..5db3007d6 100644
--- a/activity_browser/bwutils/superstructure/dataframe.py
+++ b/activity_browser/bwutils/superstructure/dataframe.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 from typing import List, Tuple
-from PySide2.QtWidgets import QApplication, QPushButton
-from PySide2.QtCore import Qt
+from PySide6.QtWidgets import QApplication, QPushButton
+from PySide6.QtCore import Qt
 import sys
 import ast
 
diff --git a/activity_browser/bwutils/superstructure/file_dialogs.py b/activity_browser/bwutils/superstructure/file_dialogs.py
index 70fb3d009..fd64e396c 100644
--- a/activity_browser/bwutils/superstructure/file_dialogs.py
+++ b/activity_browser/bwutils/superstructure/file_dialogs.py
@@ -1,4 +1,4 @@
-from PySide2 import QtWidgets, QtCore
+from PySide6 import QtWidgets, QtCore
 import pandas as pd
 
 
diff --git a/activity_browser/bwutils/superstructure/manager.py b/activity_browser/bwutils/superstructure/manager.py
index f86c8344e..af22e3845 100644
--- a/activity_browser/bwutils/superstructure/manager.py
+++ b/activity_browser/bwutils/superstructure/manager.py
@@ -4,8 +4,8 @@
 import numpy as np
 import pandas as pd
 from pandas.api.types import is_numeric_dtype
-from PySide2.QtWidgets import QApplication, QPushButton
-from PySide2.QtCore import Qt
+from PySide6.QtWidgets import QApplication, QPushButton
+from PySide6.QtCore import Qt
 from typing import Union, Optional
 
 import brightway2 as bw
diff --git a/activity_browser/bwutils/superstructure/mlca.py b/activity_browser/bwutils/superstructure/mlca.py
index a3f0937ff..d3988c29c 100644
--- a/activity_browser/bwutils/superstructure/mlca.py
+++ b/activity_browser/bwutils/superstructure/mlca.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 from typing import Iterable, Optional
-from PySide2.QtWidgets import QPushButton
+from PySide6.QtWidgets import QPushButton
 
 from bw2calc.matrices import TechnosphereBiosphereMatrixBuilder as MB
 import numpy as np
diff --git a/activity_browser/controllers/activity.py b/activity_browser/controllers/activity.py
index eb3054060..cf41d5ba9 100644
--- a/activity_browser/controllers/activity.py
+++ b/activity_browser/controllers/activity.py
@@ -5,8 +5,8 @@
 import brightway2 as bw
 import pandas as pd
 from bw2data.backends.peewee.proxies import Activity, ExchangeProxyBase
-from PySide2.QtCore import QObject, Slot, Qt
-from PySide2 import QtWidgets
+from PySide6.QtCore import QObject, Slot, Qt
+from PySide6 import QtWidgets
 
 from activity_browser.bwutils import AB_metadata, commontasks as bc
 from activity_browser.bwutils.strategies import relink_activity_exchanges
diff --git a/activity_browser/controllers/database.py b/activity_browser/controllers/database.py
index 9d7d1050f..1157a9121 100644
--- a/activity_browser/controllers/database.py
+++ b/activity_browser/controllers/database.py
@@ -2,8 +2,8 @@
 import brightway2 as bw
 from bw2data.backends.peewee import sqlite3_lci_db
 from bw2data.parameters import Group
-from PySide2 import QtWidgets
-from PySide2.QtCore import QObject, Slot, Qt
+from PySide6 import QtWidgets
+from PySide6.QtCore import QObject, Slot, Qt
 
 from ..bwutils import commontasks as bc
 from ..bwutils.strategies import relink_exchanges_existing_db
diff --git a/activity_browser/controllers/parameter.py b/activity_browser/controllers/parameter.py
index aa52f5d02..188aa0469 100644
--- a/activity_browser/controllers/parameter.py
+++ b/activity_browser/controllers/parameter.py
@@ -3,8 +3,8 @@
 
 import brightway2 as bw
 from bw2data.parameters import ActivityParameter, Group, ParameterBase
-from PySide2.QtCore import QObject, Slot
-from PySide2.QtWidgets import QInputDialog, QMessageBox, QErrorMessage
+from PySide6.QtCore import QObject, Slot
+from PySide6.QtWidgets import QInputDialog, QMessageBox, QErrorMessage
 
 from activity_browser.bwutils import commontasks as bc
 from activity_browser.signals import signals
diff --git a/activity_browser/controllers/plugin.py b/activity_browser/controllers/plugin.py
index 97fa418eb..42bd4b468 100644
--- a/activity_browser/controllers/plugin.py
+++ b/activity_browser/controllers/plugin.py
@@ -5,7 +5,7 @@
 from pkgutil import iter_modules
 from shutil import rmtree
 
-from PySide2.QtCore import QObject, Slot
+from PySide6.QtCore import QObject, Slot
 
 from ..ui.wizards.plugins_manager_wizard import PluginsManagerWizard
 from ..signals import signals
diff --git a/activity_browser/controllers/project.py b/activity_browser/controllers/project.py
index 2d8e42c88..215b31606 100644
--- a/activity_browser/controllers/project.py
+++ b/activity_browser/controllers/project.py
@@ -1,8 +1,8 @@
 # -*- coding: utf-8 -*-
 import brightway2 as bw
 import traceback
-from PySide2.QtCore import QObject, Slot
-from PySide2 import QtWidgets
+from PySide6.QtCore import QObject, Slot
+from PySide6 import QtWidgets
 
 from activity_browser.bwutils import commontasks as bc
 from activity_browser.settings import ab_settings
diff --git a/activity_browser/controllers/utils.py b/activity_browser/controllers/utils.py
index 3ace0d971..96c66e482 100644
--- a/activity_browser/controllers/utils.py
+++ b/activity_browser/controllers/utils.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-from PySide2.QtCore import QObject, Slot
+from PySide6.QtCore import QObject, Slot
 
 from activity_browser.bwutils import AB_metadata
 from activity_browser.signals import signals
diff --git a/activity_browser/layouts/main.py b/activity_browser/layouts/main.py
index 05132d9b7..791bece9f 100644
--- a/activity_browser/layouts/main.py
+++ b/activity_browser/layouts/main.py
@@ -4,7 +4,7 @@
 import sys
 import shutil
 
-from PySide2 import QtCore, QtGui, QtWidgets
+from PySide6 import QtCore, QtGui, QtWidgets
 
 from ..ui.icons import qicons
 from ..ui.menu_bar import MenuBar
diff --git a/activity_browser/layouts/panels/panel.py b/activity_browser/layouts/panels/panel.py
index 6e0db7b46..d17a0d115 100644
--- a/activity_browser/layouts/panels/panel.py
+++ b/activity_browser/layouts/panels/panel.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-from PySide2 import QtWidgets, QtCore
+from PySide6 import QtWidgets, QtCore
 
 from ...signals import signals
 
diff --git a/activity_browser/layouts/panels/right.py b/activity_browser/layouts/panels/right.py
index 0d1279d7b..9ae2ccb03 100644
--- a/activity_browser/layouts/panels/right.py
+++ b/activity_browser/layouts/panels/right.py
@@ -2,7 +2,7 @@
 from pathlib import Path
 
 import brightway2 as bw
-from PySide2.QtWidgets import QVBoxLayout
+from PySide6.QtWidgets import QVBoxLayout
 
 from .panel import ABTab
 from ...ui.web import GraphNavigatorWidget, RestrictedWebViewWidget
diff --git a/activity_browser/layouts/tabs/LCA_results_tab.py b/activity_browser/layouts/tabs/LCA_results_tab.py
index 7a484eb8a..1f25a7de9 100644
--- a/activity_browser/layouts/tabs/LCA_results_tab.py
+++ b/activity_browser/layouts/tabs/LCA_results_tab.py
@@ -2,8 +2,8 @@
 import traceback
 
 from bw2calc.errors import BW2CalcError
-from PySide2.QtCore import Qt, Slot
-from PySide2.QtWidgets import QMessageBox, QVBoxLayout, QApplication
+from PySide6.QtCore import Qt, Slot
+from PySide6.QtWidgets import QMessageBox, QVBoxLayout, QApplication
 
 from .LCA_results_tabs import LCAResultsSubTab
 from ..panels import ABTab
diff --git a/activity_browser/layouts/tabs/LCA_results_tabs.py b/activity_browser/layouts/tabs/LCA_results_tabs.py
index 63cc3f214..550fa9f28 100644
--- a/activity_browser/layouts/tabs/LCA_results_tabs.py
+++ b/activity_browser/layouts/tabs/LCA_results_tabs.py
@@ -9,14 +9,14 @@
 from typing import List, Optional, Union
 import pandas as pd
 
-from PySide2.QtWidgets import (
+from PySide6.QtWidgets import (
     QWidget, QTabWidget, QVBoxLayout, QHBoxLayout, QScrollArea, QRadioButton,
     QLabel, QLineEdit, QCheckBox, QPushButton, QComboBox, QTableView,
     QButtonGroup, QMessageBox, QGroupBox, QGridLayout, QFileDialog,
     QButtonGroup, QMessageBox, QGroupBox, QGridLayout, QFileDialog,
     QApplication, QSizePolicy, QToolBar
 )
-from PySide2 import QtGui, QtCore
+from PySide6 import QtGui, QtCore
 from stats_arrays.errors import InvalidParamsError
 
 from ...bwutils import (
diff --git a/activity_browser/layouts/tabs/LCA_setup.py b/activity_browser/layouts/tabs/LCA_setup.py
index 3f0fe9e84..10abbf93c 100644
--- a/activity_browser/layouts/tabs/LCA_setup.py
+++ b/activity_browser/layouts/tabs/LCA_setup.py
@@ -1,8 +1,8 @@
 # -*- coding: utf-8 -*-
 from typing import Optional, Union
 
-from PySide2 import QtWidgets
-from PySide2.QtCore import Slot, Qt
+from PySide6 import QtWidgets
+from PySide6.QtCore import Slot, Qt
 from brightway2 import calculation_setups
 import pandas as pd
 import re
diff --git a/activity_browser/layouts/tabs/activity.py b/activity_browser/layouts/tabs/activity.py
index 76ec878e1..f24b34aa9 100644
--- a/activity_browser/layouts/tabs/activity.py
+++ b/activity_browser/layouts/tabs/activity.py
@@ -1,8 +1,8 @@
 # -*- coding: utf-8 -*-
 import brightway2 as bw
 from peewee import DoesNotExist
-from PySide2 import QtCore, QtWidgets
-from PySide2.QtCore import Slot
+from PySide6 import QtCore, QtWidgets
+from PySide6.QtCore import Slot
 
 from ...ui.icons import qicons
 from ...ui.style import style_activity_tab
diff --git a/activity_browser/layouts/tabs/base.py b/activity_browser/layouts/tabs/base.py
index fb094fb2c..5db020ae7 100644
--- a/activity_browser/layouts/tabs/base.py
+++ b/activity_browser/layouts/tabs/base.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
-from PySide2.QtCore import Slot
-from PySide2.QtWidgets import QMessageBox, QWidget
+from PySide6.QtCore import Slot
+from PySide6.QtWidgets import QMessageBox, QWidget
 
 
 class BaseRightTab(QWidget):
diff --git a/activity_browser/layouts/tabs/history.py b/activity_browser/layouts/tabs/history.py
index abd1f340d..96530f8d9 100644
--- a/activity_browser/layouts/tabs/history.py
+++ b/activity_browser/layouts/tabs/history.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-from PySide2 import QtCore, QtWidgets
+from PySide6 import QtCore, QtWidgets
 
 from ...ui.style import horizontal_line, header
 from ...ui.tables import ActivitiesHistoryTable
diff --git a/activity_browser/layouts/tabs/impact_categories.py b/activity_browser/layouts/tabs/impact_categories.py
index 7c249b22f..12b6db6d2 100644
--- a/activity_browser/layouts/tabs/impact_categories.py
+++ b/activity_browser/layouts/tabs/impact_categories.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-from PySide2 import QtCore, QtWidgets
+from PySide6 import QtCore, QtWidgets
 from ...ui.icons import qicons
 
 from ...ui.style import header, horizontal_line
diff --git a/activity_browser/layouts/tabs/parameters.py b/activity_browser/layouts/tabs/parameters.py
index c89ceba10..cb185aedd 100644
--- a/activity_browser/layouts/tabs/parameters.py
+++ b/activity_browser/layouts/tabs/parameters.py
@@ -3,8 +3,8 @@
 
 import brightway2 as bw
 import pandas as pd
-from PySide2.QtCore import Slot, QSize, Qt
-from PySide2.QtWidgets import (
+from PySide6.QtCore import Slot, QSize, Qt
+from PySide6.QtWidgets import (
     QCheckBox, QFileDialog, QHBoxLayout, QMessageBox, QPushButton, QToolBar,
     QStyle, QVBoxLayout, QTabWidget, QSplitter, QWidget, QAbstractButton
 )
diff --git a/activity_browser/layouts/tabs/project_manager.py b/activity_browser/layouts/tabs/project_manager.py
index 3bdf926a0..ac6deab73 100644
--- a/activity_browser/layouts/tabs/project_manager.py
+++ b/activity_browser/layouts/tabs/project_manager.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-from PySide2 import QtCore, QtWidgets
+from PySide6 import QtCore, QtWidgets
 
 from ..panels import ABTab
 from ...ui.style import header
diff --git a/activity_browser/settings.py b/activity_browser/settings.py
index 89d156b88..9ef1cf532 100644
--- a/activity_browser/settings.py
+++ b/activity_browser/settings.py
@@ -4,7 +4,7 @@
 from pathlib import Path
 import shutil
 from typing import Optional
-from PySide2.QtWidgets import QMessageBox
+from PySide6.QtWidgets import QMessageBox
 
 import appdirs
 import brightway2 as bw
diff --git a/activity_browser/signals.py b/activity_browser/signals.py
index db0454e75..ea3ead0fe 100644
--- a/activity_browser/signals.py
+++ b/activity_browser/signals.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-from PySide2.QtCore import QObject, Signal, QModelIndex
+from PySide6.QtCore import QObject, Signal, QModelIndex
 
 
 class Signals(QObject):
diff --git a/activity_browser/ui/figures.py b/activity_browser/ui/figures.py
index 98ead0ae5..e1aef9fce 100644
--- a/activity_browser/ui/figures.py
+++ b/activity_browser/ui/figures.py
@@ -7,7 +7,7 @@
 from matplotlib.figure import Figure
 import numpy as np
 import pandas as pd
-from PySide2 import QtWidgets
+from PySide6 import QtWidgets
 import seaborn as sns
 
 from activity_browser.utils import savefilepath
diff --git a/activity_browser/ui/icons.py b/activity_browser/ui/icons.py
index a9355795e..ce93fd5ff 100644
--- a/activity_browser/ui/icons.py
+++ b/activity_browser/ui/icons.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 from pathlib import Path
 
-from PySide2.QtGui import QIcon
+from PySide6.QtGui import QIcon
 
 PACKAGE_DIR = Path(__file__).resolve().parents[1]
 
diff --git a/activity_browser/ui/menu_bar.py b/activity_browser/ui/menu_bar.py
index 80b888b4f..e97ba9dac 100644
--- a/activity_browser/ui/menu_bar.py
+++ b/activity_browser/ui/menu_bar.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 import brightway2 as bw
-from PySide2 import QtWidgets, QtGui
-from PySide2.QtCore import QSize, QUrl, Slot
+from PySide6 import QtWidgets, QtGui
+from PySide6.QtCore import QSize, QUrl, Slot
 
 from ..info import __version__ as ab_version
 from .icons import qicons
@@ -18,18 +18,18 @@ def __init__(self, window):
         self.tools_menu = QtWidgets.QMenu('&Tools', self.window)
         self.help_menu = QtWidgets.QMenu('&Help', self.window)
 
-        self.update_biosphere_action = QtWidgets.QAction(
+        self.update_biosphere_action = QtGui.QAction(
             window.style().standardIcon(QtWidgets.QStyle.SP_BrowserReload),
             "&Update biosphere...", None
         )
-        self.export_db_action = QtWidgets.QAction(
+        self.export_db_action = QtGui.QAction(
             self.window.style().standardIcon(QtWidgets.QStyle.SP_DriveHDIcon),
             "&Export database...", None
         )
-        self.import_db_action = QtWidgets.QAction(
+        self.import_db_action = QtGui.QAction(
             qicons.import_db, '&Import database...', None
         )
-        self.manage_plugins_action = QtWidgets.QAction(
+        self.manage_plugins_action = QtGui.QAction(
             qicons.plugin, '&Plugins...', None
         )
 
diff --git a/activity_browser/ui/statusbar.py b/activity_browser/ui/statusbar.py
index e40743c78..cc335b1ca 100644
--- a/activity_browser/ui/statusbar.py
+++ b/activity_browser/ui/statusbar.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
-from PySide2.QtCore import Slot
-from PySide2.QtWidgets import QLabel, QStatusBar
+from PySide6.QtCore import Slot
+from PySide6.QtWidgets import QLabel, QStatusBar
 
 import brightway2 as bw
 
diff --git a/activity_browser/ui/style.py b/activity_browser/ui/style.py
index 868025f87..0f886e369 100644
--- a/activity_browser/ui/style.py
+++ b/activity_browser/ui/style.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-from PySide2 import QtGui, QtWidgets
+from PySide6 import QtGui, QtWidgets
 
 default_font = QtGui.QFont('Arial', 8)
 
diff --git a/activity_browser/ui/tables/LCA_setup.py b/activity_browser/ui/tables/LCA_setup.py
index 9d2d9e55e..c97b8e4ff 100644
--- a/activity_browser/ui/tables/LCA_setup.py
+++ b/activity_browser/ui/tables/LCA_setup.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 import brightway2 as bw
-from PySide2.QtCore import Slot, Qt
-from PySide2 import QtWidgets
+from PySide6.QtCore import Slot, Qt
+from PySide6 import QtWidgets
 
 from activity_browser.signals import signals
 from ..icons import qicons
diff --git a/activity_browser/ui/tables/activity.py b/activity_browser/ui/tables/activity.py
index 84d5c7945..9986933ab 100644
--- a/activity_browser/ui/tables/activity.py
+++ b/activity_browser/ui/tables/activity.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
-from PySide2 import QtWidgets
-from PySide2.QtCore import Slot
+from PySide6 import QtWidgets
+from PySide6.QtCore import Slot
 
 from .delegates import *
 from .models import (
diff --git a/activity_browser/ui/tables/delegates/checkbox.py b/activity_browser/ui/tables/delegates/checkbox.py
index 1a5a24e66..5f594a3e6 100644
--- a/activity_browser/ui/tables/delegates/checkbox.py
+++ b/activity_browser/ui/tables/delegates/checkbox.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-from PySide2 import QtCore, QtWidgets
+from PySide6 import QtCore, QtWidgets
 
 
 class CheckboxDelegate(QtWidgets.QStyledItemDelegate):
@@ -16,8 +16,6 @@ def paint(self, painter, option, index):
         https://stackoverflow.com/a/11778012
         https://stackoverflow.com/q/15235273
 
-        NOTE: PyQt 5.9.2 needs to treat OSX different from others.
-         PySide2 5.13.1 and higher no longer has this issue.
         """
         painter.save()
         value = bool(index.data(QtCore.Qt.DisplayRole))
diff --git a/activity_browser/ui/tables/delegates/database.py b/activity_browser/ui/tables/delegates/database.py
index f3a3624dd..5f1b23471 100644
--- a/activity_browser/ui/tables/delegates/database.py
+++ b/activity_browser/ui/tables/delegates/database.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 from bw2data import databases
-from PySide2 import QtCore, QtWidgets
+from PySide6 import QtCore, QtWidgets
 
 
 class DatabaseDelegate(QtWidgets.QStyledItemDelegate):
diff --git a/activity_browser/ui/tables/delegates/float.py b/activity_browser/ui/tables/delegates/float.py
index 5469ac364..c4db374c9 100644
--- a/activity_browser/ui/tables/delegates/float.py
+++ b/activity_browser/ui/tables/delegates/float.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 import math
 
-from PySide2 import QtCore, QtGui, QtWidgets
+from PySide6 import QtCore, QtGui, QtWidgets
 
 
 class FloatDelegate(QtWidgets.QStyledItemDelegate):
diff --git a/activity_browser/ui/tables/delegates/formula.py b/activity_browser/ui/tables/delegates/formula.py
index 3f87eeefe..b6b744337 100644
--- a/activity_browser/ui/tables/delegates/formula.py
+++ b/activity_browser/ui/tables/delegates/formula.py
@@ -2,8 +2,8 @@
 from os import devnull
 
 from asteval import Interpreter
-from PySide2 import QtCore, QtGui, QtWidgets
-from PySide2.QtCore import Signal, Slot
+from PySide6 import QtCore, QtGui, QtWidgets
+from PySide6.QtCore import Signal, Slot
 
 from activity_browser.signals import signals
 from activity_browser.ui.icons import qicons
diff --git a/activity_browser/ui/tables/delegates/list.py b/activity_browser/ui/tables/delegates/list.py
index 6d8b70883..b737edc7b 100644
--- a/activity_browser/ui/tables/delegates/list.py
+++ b/activity_browser/ui/tables/delegates/list.py
@@ -2,7 +2,7 @@
 from itertools import zip_longest
 from typing import List
 
-from PySide2 import QtCore, QtGui, QtWidgets
+from PySide6 import QtCore, QtGui, QtWidgets
 
 
 class OrderedListInputDialog(QtWidgets.QDialog):
diff --git a/activity_browser/ui/tables/delegates/string.py b/activity_browser/ui/tables/delegates/string.py
index 3b5163d7e..783ea166c 100644
--- a/activity_browser/ui/tables/delegates/string.py
+++ b/activity_browser/ui/tables/delegates/string.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-from PySide2 import QtCore, QtWidgets
+from PySide6 import QtCore, QtWidgets
 
 
 class StringDelegate(QtWidgets.QStyledItemDelegate):
diff --git a/activity_browser/ui/tables/delegates/uncertainty.py b/activity_browser/ui/tables/delegates/uncertainty.py
index 63ab866a5..7bf1459b9 100644
--- a/activity_browser/ui/tables/delegates/uncertainty.py
+++ b/activity_browser/ui/tables/delegates/uncertainty.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-from PySide2 import QtCore, QtWidgets
+from PySide6 import QtCore, QtWidgets
 from stats_arrays import uncertainty_choices as uc
 from ....signals import signals
 
diff --git a/activity_browser/ui/tables/delegates/viewonly.py b/activity_browser/ui/tables/delegates/viewonly.py
index 43884db4c..021cb20c8 100644
--- a/activity_browser/ui/tables/delegates/viewonly.py
+++ b/activity_browser/ui/tables/delegates/viewonly.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 import math
 
-from PySide2.QtWidgets import QStyledItemDelegate
+from PySide6.QtWidgets import QStyledItemDelegate
 
 from .float import FloatDelegate
 from .uncertainty import UncertaintyDelegate
diff --git a/activity_browser/ui/tables/history.py b/activity_browser/ui/tables/history.py
index 93a7c1666..eb04b3d68 100644
--- a/activity_browser/ui/tables/history.py
+++ b/activity_browser/ui/tables/history.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
-from PySide2.QtCore import Slot
-from PySide2.QtWidgets import QAbstractItemView, QMenu
+from PySide6.QtCore import Slot
+from PySide6.QtWidgets import QAbstractItemView, QMenu
 
 from ..icons import qicons
 from .models import ActivitiesHistoryModel
diff --git a/activity_browser/ui/tables/impact_categories.py b/activity_browser/ui/tables/impact_categories.py
index 3091cb587..cc9ec396b 100644
--- a/activity_browser/ui/tables/impact_categories.py
+++ b/activity_browser/ui/tables/impact_categories.py
@@ -1,8 +1,8 @@
 # -*- coding: utf-8 -*-
 from typing import Iterable
 
-from PySide2 import QtWidgets
-from PySide2.QtCore import QModelIndex, Slot
+from PySide6 import QtWidgets
+from PySide6.QtCore import QModelIndex, Slot
 
 from ...signals import signals
 from ..icons import qicons
diff --git a/activity_browser/ui/tables/inventory.py b/activity_browser/ui/tables/inventory.py
index 30c9e6359..f6e1494b9 100644
--- a/activity_browser/ui/tables/inventory.py
+++ b/activity_browser/ui/tables/inventory.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
-from PySide2 import QtWidgets, QtCore
-from PySide2.QtCore import Slot
+from PySide6 import QtWidgets, QtCore, QtGui
+from PySide6.QtCore import Slot
 
 from ...settings import project_settings
 from ...signals import signals
@@ -27,10 +27,10 @@ def __init__(self, parent=None):
             QtWidgets.QSizePolicy.Preferred,
             QtWidgets.QSizePolicy.Maximum
         ))
-        self.relink_action = QtWidgets.QAction(
+        self.relink_action = QtGui.QAction(
             qicons.edit, "Relink the database", None
         )
-        self.new_activity_action =QtWidgets.QAction(
+        self.new_activity_action = QtGui.QAction(
             qicons.add, "Add new activity", None
         )
         self.model = DatabasesModel(parent=self)
diff --git a/activity_browser/ui/tables/models/activity.py b/activity_browser/ui/tables/models/activity.py
index 97a640fa9..17b10030f 100644
--- a/activity_browser/ui/tables/models/activity.py
+++ b/activity_browser/ui/tables/models/activity.py
@@ -8,7 +8,7 @@
 from bw2data.proxies import ExchangeProxyBase
 import pandas as pd
 from peewee import DoesNotExist
-from PySide2.QtCore import QModelIndex, Qt, Slot
+from PySide6.QtCore import QModelIndex, Qt, Slot
 
 from activity_browser.bwutils import (
     PedigreeMatrix, uncertainty as uc, commontasks as bc
diff --git a/activity_browser/ui/tables/models/base.py b/activity_browser/ui/tables/models/base.py
index 5f138e3c8..f03333455 100644
--- a/activity_browser/ui/tables/models/base.py
+++ b/activity_browser/ui/tables/models/base.py
@@ -5,10 +5,10 @@
 import arrow
 import numpy as np
 import pandas as pd
-from PySide2.QtCore import (
+from PySide6.QtCore import (
     QAbstractItemModel, QAbstractTableModel, QModelIndex, Qt, Signal, QSortFilterProxyModel
 )
-from PySide2.QtGui import QBrush
+from PySide6.QtGui import QBrush
 
 from activity_browser.bwutils import commontasks as bc
 from activity_browser.ui.style import style_item
diff --git a/activity_browser/ui/tables/models/history.py b/activity_browser/ui/tables/models/history.py
index 64543d31e..04b146640 100644
--- a/activity_browser/ui/tables/models/history.py
+++ b/activity_browser/ui/tables/models/history.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 import brightway2 as bw
 import pandas as pd
-from PySide2.QtCore import Slot, QModelIndex
+from PySide6.QtCore import Slot, QModelIndex
 
 from activity_browser.bwutils import commontasks as bc
 from activity_browser.signals import signals
diff --git a/activity_browser/ui/tables/models/impact_categories.py b/activity_browser/ui/tables/models/impact_categories.py
index 1209cf02a..8b09d82d2 100644
--- a/activity_browser/ui/tables/models/impact_categories.py
+++ b/activity_browser/ui/tables/models/impact_categories.py
@@ -7,8 +7,8 @@
 import brightway2 as bw
 import numpy as np
 import pandas as pd
-from PySide2.QtCore import QModelIndex, Qt, Slot
-from PySide2.QtWidgets import QMessageBox
+from PySide6.QtCore import QModelIndex, Qt, Slot
+from PySide6.QtWidgets import QMessageBox
 
 from activity_browser.signals import signals
 from ...wizards import UncertaintyWizard
diff --git a/activity_browser/ui/tables/models/inventory.py b/activity_browser/ui/tables/models/inventory.py
index eda93357b..2a044adc1 100644
--- a/activity_browser/ui/tables/models/inventory.py
+++ b/activity_browser/ui/tables/models/inventory.py
@@ -6,8 +6,8 @@
 from bw2data.utils import natural_sort
 import numpy as np
 import pandas as pd
-from PySide2.QtCore import Qt, QModelIndex, Slot
-from PySide2.QtWidgets import QApplication
+from PySide6.QtCore import Qt, QModelIndex, Slot
+from PySide6.QtWidgets import QApplication
 
 from activity_browser.bwutils import AB_metadata, commontasks as bc
 from activity_browser.settings import project_settings
diff --git a/activity_browser/ui/tables/models/lca_setup.py b/activity_browser/ui/tables/models/lca_setup.py
index 11495f03b..32bb7783e 100644
--- a/activity_browser/ui/tables/models/lca_setup.py
+++ b/activity_browser/ui/tables/models/lca_setup.py
@@ -5,7 +5,7 @@
 from bw2data.backends.peewee import ActivityDataset
 import pandas as pd
 import numpy as np
-from PySide2.QtCore import QModelIndex, Slot, Qt
+from PySide6.QtCore import QModelIndex, Slot, Qt
 
 from activity_browser.bwutils import commontasks as bc
 from activity_browser.signals import signals
diff --git a/activity_browser/ui/tables/models/parameters.py b/activity_browser/ui/tables/models/parameters.py
index 715516db3..ab3d3001c 100644
--- a/activity_browser/ui/tables/models/parameters.py
+++ b/activity_browser/ui/tables/models/parameters.py
@@ -8,7 +8,7 @@
 from bw2data.parameters import (ActivityParameter, DatabaseParameter, Group,
                                 ProjectParameter)
 from peewee import DoesNotExist
-from PySide2.QtCore import Slot, QModelIndex
+from PySide6.QtCore import Slot, QModelIndex
 
 from activity_browser.bwutils import commontasks as bc, uncertainty as uc
 from activity_browser.signals import signals
diff --git a/activity_browser/ui/tables/models/plugins.py b/activity_browser/ui/tables/models/plugins.py
index a6bf8b688..525728105 100644
--- a/activity_browser/ui/tables/models/plugins.py
+++ b/activity_browser/ui/tables/models/plugins.py
@@ -2,7 +2,7 @@
 from importlib import metadata
 
 import pandas as pd
-from PySide2.QtCore import QModelIndex
+from PySide6.QtCore import QModelIndex
 
 from activity_browser.settings import project_settings, ab_settings
 from activity_browser.signals import signals
diff --git a/activity_browser/ui/tables/models/scenarios.py b/activity_browser/ui/tables/models/scenarios.py
index 16a88c628..e841d0cfd 100644
--- a/activity_browser/ui/tables/models/scenarios.py
+++ b/activity_browser/ui/tables/models/scenarios.py
@@ -3,7 +3,7 @@
 
 import numpy as np
 import pandas as pd
-from PySide2.QtCore import Slot
+from PySide6.QtCore import Slot
 
 from activity_browser.bwutils.utils import Parameters
 from activity_browser.signals import signals
diff --git a/activity_browser/ui/tables/parameters.py b/activity_browser/ui/tables/parameters.py
index 5fb28dc8d..10b258d9e 100644
--- a/activity_browser/ui/tables/parameters.py
+++ b/activity_browser/ui/tables/parameters.py
@@ -1,8 +1,8 @@
 # -*- coding: utf-8 -*-
 from asteval import Interpreter
-from PySide2.QtCore import Slot
-from PySide2.QtGui import QContextMenuEvent, QDragMoveEvent, QDropEvent
-from PySide2.QtWidgets import QAction, QMenu, QMessageBox
+from PySide6.QtCore import Slot
+from PySide6.QtGui import QContextMenuEvent, QDragMoveEvent, QDropEvent, QAction
+from PySide6.QtWidgets import QMenu, QMessageBox
 
 from ...settings import project_settings
 from ...signals import signals
diff --git a/activity_browser/ui/tables/plugins.py b/activity_browser/ui/tables/plugins.py
index 15a5f6270..dda1d758d 100644
--- a/activity_browser/ui/tables/plugins.py
+++ b/activity_browser/ui/tables/plugins.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
-from PySide2 import QtWidgets, QtCore
-from PySide2.QtWidgets import QMessageBox
+from PySide6 import QtWidgets, QtCore
+from PySide6.QtWidgets import QMessageBox
 import pandas
 
 from ...signals import signals
diff --git a/activity_browser/ui/tables/projects.py b/activity_browser/ui/tables/projects.py
index 3390fe165..83a53c2c2 100644
--- a/activity_browser/ui/tables/projects.py
+++ b/activity_browser/ui/tables/projects.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 from bw2data import projects
-from PySide2.QtWidgets import QComboBox
-from PySide2.QtCore import Qt
+from PySide6.QtWidgets import QComboBox
+from PySide6.QtCore import Qt
 from ...signals import signals
 
 
diff --git a/activity_browser/ui/tables/scenarios.py b/activity_browser/ui/tables/scenarios.py
index b83980a56..7411b47d1 100644
--- a/activity_browser/ui/tables/scenarios.py
+++ b/activity_browser/ui/tables/scenarios.py
@@ -2,8 +2,8 @@
 #from typing import Iterable, List, Tuple
 from typing import Iterable, Tuple
 
-from PySide2.QtCore import Slot
-#from PySide2.QtWidgets import QComboBox
+from PySide6.QtCore import Slot
+#from PySide6.QtWidgets import QComboBox
 
 from activity_browser.signals import signals
 from .models import ScenarioModel
diff --git a/activity_browser/ui/tables/views.py b/activity_browser/ui/tables/views.py
index 43f5fd210..95a80e5c8 100644
--- a/activity_browser/ui/tables/views.py
+++ b/activity_browser/ui/tables/views.py
@@ -3,10 +3,10 @@
 from typing import Optional
 
 from bw2data.filesystem import safe_filename
-from PySide2.QtCore import QSize, Qt, Slot, QPoint, Signal, QRect, QTimer
-from PySide2.QtWidgets import QFileDialog, QTableView, QTreeView, QApplication, QMenu, QAction, \
+from PySide6.QtCore import QSize, Qt, Slot, QPoint, Signal, QRect, QTimer
+from PySide6.QtWidgets import QFileDialog, QTableView, QTreeView, QApplication, QMenu, \
     QHeaderView, QStyle, QStyleOptionButton,QLineEdit, QWidgetAction, QWidget, QHBoxLayout, QToolButton
-from PySide2.QtGui import QKeyEvent, QDoubleValidator
+from PySide6.QtGui import QKeyEvent, QDoubleValidator, QAction
 
 from ...settings import ab_settings
 from ..widgets.dialog import FilterManagerDialog, SimpleFilterDialog
diff --git a/activity_browser/ui/threading.py b/activity_browser/ui/threading.py
index c5ac79cfc..efa30d697 100644
--- a/activity_browser/ui/threading.py
+++ b/activity_browser/ui/threading.py
@@ -1,4 +1,4 @@
-from PySide2.QtCore import QThread
+from PySide6.QtCore import QThread
 import brightway2 as bw
 
 
diff --git a/activity_browser/ui/web/base.py b/activity_browser/ui/web/base.py
index b8bb430a7..2bae10af6 100644
--- a/activity_browser/ui/web/base.py
+++ b/activity_browser/ui/web/base.py
@@ -5,8 +5,8 @@
 import os
 from typing import Type
 
-from PySide2 import QtWebEngineWidgets, QtWebChannel, QtWidgets
-from PySide2.QtCore import Signal, Slot, QObject, Qt, QUrl
+from PySide6 import QtWebEngineWidgets, QtWebChannel, QtWidgets
+from PySide6.QtCore import Signal, Slot, QObject, Qt, QUrl
 from bw2data.filesystem import safe_filename
 
 from . import webutils
diff --git a/activity_browser/ui/web/navigator.py b/activity_browser/ui/web/navigator.py
index 761b45848..53c4fbd98 100644
--- a/activity_browser/ui/web/navigator.py
+++ b/activity_browser/ui/web/navigator.py
@@ -7,8 +7,8 @@
 
 import brightway2 as bw
 import networkx as nx
-from PySide2 import QtWidgets
-from PySide2.QtCore import Slot
+from PySide6 import QtWidgets
+from PySide6.QtCore import Slot
 
 from .base import BaseGraph, BaseNavigatorWidget
 from ...signals import signals
diff --git a/activity_browser/ui/web/sankey_navigator.py b/activity_browser/ui/web/sankey_navigator.py
index 673206528..f911b5a76 100644
--- a/activity_browser/ui/web/sankey_navigator.py
+++ b/activity_browser/ui/web/sankey_navigator.py
@@ -5,9 +5,9 @@
 from typing import List
 
 import brightway2 as bw
-from PySide2 import QtWidgets
-from PySide2.QtCore import Slot
-from PySide2.QtWidgets import QComboBox
+from PySide6 import QtWidgets
+from PySide6.QtCore import Slot
+from PySide6.QtWidgets import QComboBox
 
 from .base import BaseGraph, BaseNavigatorWidget
 from ...bwutils.commontasks import identify_activity_type
diff --git a/activity_browser/ui/web/webutils.py b/activity_browser/ui/web/webutils.py
index 1b4bd7a56..ba524686b 100644
--- a/activity_browser/ui/web/webutils.py
+++ b/activity_browser/ui/web/webutils.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-from PySide2 import QtWidgets, QtCore, QtGui, QtWebEngineWidgets
+from PySide6 import QtWidgets, QtCore, QtGui, QtWebEngineWidgets, QtWebEngineCore
 import os
 
 # type "localhost:3999" in Chrome for DevTools of AB web content
@@ -7,7 +7,7 @@
 os.environ['QTWEBENGINE_REMOTE_DEBUGGING'] = '3999'
 
 
-class RestrictedQWebEnginePage(QtWebEngineWidgets.QWebEnginePage):
+class RestrictedQWebEnginePage(QtWebEngineCore.QWebEnginePage):
     """ Filters links so that users cannot just navigate to any page on the web,
     but just to those pages, that are listed in allowed_pages.
     This is achieved by re-implementing acceptNavigationRequest.
diff --git a/activity_browser/ui/widgets/activity.py b/activity_browser/ui/widgets/activity.py
index 75fdd1367..77a13e7ef 100644
--- a/activity_browser/ui/widgets/activity.py
+++ b/activity_browser/ui/widgets/activity.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
-from PySide2 import QtCore, QtWidgets
-from PySide2.QtWidgets import QMessageBox
+from PySide6 import QtCore, QtWidgets
+from PySide6.QtWidgets import QMessageBox
 
 from .line_edit import SignalledLineEdit, SignalledComboEdit
 from ..icons import qicons
diff --git a/activity_browser/ui/widgets/biosphere_update.py b/activity_browser/ui/widgets/biosphere_update.py
index f7d52cc0e..25961a173 100644
--- a/activity_browser/ui/widgets/biosphere_update.py
+++ b/activity_browser/ui/widgets/biosphere_update.py
@@ -1,8 +1,8 @@
 # -*- coding: utf-8 -*-
 import brightway2 as bw
 from bw2data.errors import ValidityError
-from PySide2 import QtCore, QtWidgets
-from PySide2.QtCore import Signal, Slot
+from PySide6 import QtCore, QtWidgets
+from PySide6.QtCore import Signal, Slot
 import bw2io.data as data
 from ...signals import signals
 
diff --git a/activity_browser/ui/widgets/comparison_switch.py b/activity_browser/ui/widgets/comparison_switch.py
index d1807ba8a..3adcbe6eb 100644
--- a/activity_browser/ui/widgets/comparison_switch.py
+++ b/activity_browser/ui/widgets/comparison_switch.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 from collections import namedtuple
 
-from PySide2 import QtWidgets
+from PySide6 import QtWidgets
 
 
 Switches = namedtuple("switches", ("func", "method", "scenario"))
diff --git a/activity_browser/ui/widgets/cutoff_menu.py b/activity_browser/ui/widgets/cutoff_menu.py
index a198e207c..08ab100ca 100644
--- a/activity_browser/ui/widgets/cutoff_menu.py
+++ b/activity_browser/ui/widgets/cutoff_menu.py
@@ -10,14 +10,14 @@
 from typing import Union
 
 import numpy as np
-from PySide2 import QtCore
-from PySide2.QtCore import QLocale, Qt, Signal, Slot
-from PySide2.QtWidgets import (
+from PySide6 import QtCore
+from PySide6.QtCore import QLocale, Qt, Signal, Slot
+from PySide6.QtWidgets import (
     QWidget, QVBoxLayout, QHBoxLayout, QRadioButton, QSlider, QLabel,
     QLineEdit, QPushButton, QButtonGroup
 )
 
-from PySide2.QtGui import QIntValidator, QDoubleValidator
+from PySide6.QtGui import QIntValidator, QDoubleValidator
 
 from ..style import vertical_line
 
diff --git a/activity_browser/ui/widgets/database_copy.py b/activity_browser/ui/widgets/database_copy.py
index 404212daa..abf20ef15 100644
--- a/activity_browser/ui/widgets/database_copy.py
+++ b/activity_browser/ui/widgets/database_copy.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 import brightway2 as bw
-from PySide2 import QtCore, QtWidgets
+from PySide6 import QtCore, QtWidgets
 
 from ...signals import signals
 from ..threading import ABThread
diff --git a/activity_browser/ui/widgets/dialog.py b/activity_browser/ui/widgets/dialog.py
index 57362821a..6bc610d58 100644
--- a/activity_browser/ui/widgets/dialog.py
+++ b/activity_browser/ui/widgets/dialog.py
@@ -3,8 +3,8 @@
 from typing import List, Tuple
 
 import brightway2 as bw
-from PySide2 import QtGui, QtWidgets
-from PySide2.QtCore import Qt, Signal, Slot
+from PySide6 import QtGui, QtWidgets
+from PySide6.QtCore import Qt, Signal, Slot
 
 from activity_browser.bwutils.superstructure import get_sheet_names
 from activity_browser.settings import project_settings
diff --git a/activity_browser/ui/widgets/line_edit.py b/activity_browser/ui/widgets/line_edit.py
index dabd70e4c..3246f4959 100644
--- a/activity_browser/ui/widgets/line_edit.py
+++ b/activity_browser/ui/widgets/line_edit.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
-from PySide2 import QtWidgets
-from PySide2.QtCore import Slot
-from PySide2.QtGui import QTextFormat
+from PySide6 import QtWidgets
+from PySide6.QtCore import Slot
+from PySide6.QtGui import QTextFormat
 
 from ...signals import signals
 
diff --git a/activity_browser/ui/widgets/message.py b/activity_browser/ui/widgets/message.py
index bc451fab2..bbfa17b61 100644
--- a/activity_browser/ui/widgets/message.py
+++ b/activity_browser/ui/widgets/message.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
-from PySide2.QtCore import Qt
-from PySide2.QtWidgets import QMessageBox
+from PySide6.QtCore import Qt
+from PySide6.QtWidgets import QMessageBox
 
 
 def parameter_save_errorbox(parent, error) -> int:
diff --git a/activity_browser/ui/wizards/db_export_wizard.py b/activity_browser/ui/wizards/db_export_wizard.py
index c9e048d96..7f0bc7aad 100644
--- a/activity_browser/ui/wizards/db_export_wizard.py
+++ b/activity_browser/ui/wizards/db_export_wizard.py
@@ -2,8 +2,8 @@
 import os
 
 import brightway2 as bw
-from PySide2 import QtWidgets
-from PySide2.QtCore import Slot
+from PySide6 import QtWidgets
+from PySide6.QtCore import Slot
 
 from activity_browser.bwutils import exporters as exp
 
diff --git a/activity_browser/ui/wizards/db_import_wizard.py b/activity_browser/ui/wizards/db_import_wizard.py
index 9d2f17924..0b788fac0 100644
--- a/activity_browser/ui/wizards/db_import_wizard.py
+++ b/activity_browser/ui/wizards/db_import_wizard.py
@@ -13,8 +13,8 @@
 from bw2io.errors import InvalidPackage, StrategyError
 from bw2io.extractors import Ecospold2DataExtractor
 from bw2data.backends import SQLiteBackend
-from PySide2 import QtWidgets, QtCore
-from PySide2.QtCore import Signal, Slot
+from PySide6 import QtWidgets, QtCore
+from PySide6.QtCore import Signal, Slot
 
 from ..threading import ABThread
 from ...bwutils.errors import ImportCanceledError, LinkingFailed
diff --git a/activity_browser/ui/wizards/parameter_wizard.py b/activity_browser/ui/wizards/parameter_wizard.py
index 483ff246d..e491ca27a 100644
--- a/activity_browser/ui/wizards/parameter_wizard.py
+++ b/activity_browser/ui/wizards/parameter_wizard.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 import brightway2 as bw
-from PySide2 import QtCore, QtGui, QtWidgets
-from PySide2.QtCore import Signal
+from PySide6 import QtCore, QtGui, QtWidgets
+from PySide6.QtCore import Signal
 
 from ...bwutils import commontasks as bc
 
diff --git a/activity_browser/ui/wizards/plugins_manager_wizard.py b/activity_browser/ui/wizards/plugins_manager_wizard.py
index 591e010b8..5c11d6a4d 100644
--- a/activity_browser/ui/wizards/plugins_manager_wizard.py
+++ b/activity_browser/ui/wizards/plugins_manager_wizard.py
@@ -1,6 +1,6 @@
 import pandas
-from PySide2 import QtCore, QtWidgets
-from PySide2.QtCore import Slot, Qt
+from PySide6 import QtCore, QtWidgets
+from PySide6.QtCore import Slot, Qt
 
 from ...ui.style import header
 from ...ui.tables import PluginsTable
diff --git a/activity_browser/ui/wizards/settings_wizard.py b/activity_browser/ui/wizards/settings_wizard.py
index a9e8fe9b9..42fe71cd1 100644
--- a/activity_browser/ui/wizards/settings_wizard.py
+++ b/activity_browser/ui/wizards/settings_wizard.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 import brightway2 as bw
-from PySide2 import QtWidgets, QtCore
+from PySide6 import QtWidgets, QtCore
 from peewee import SqliteDatabase
 import os
 import re
diff --git a/activity_browser/ui/wizards/uncertainty.py b/activity_browser/ui/wizards/uncertainty.py
index 4c27550d7..e53f4e72b 100644
--- a/activity_browser/ui/wizards/uncertainty.py
+++ b/activity_browser/ui/wizards/uncertainty.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
-from PySide2 import QtCore, QtGui, QtWidgets
-from PySide2.QtCore import Signal, Slot
+from PySide6 import QtCore, QtGui, QtWidgets
+from PySide6.QtCore import Signal, Slot
 import numpy as np
 from stats_arrays import uncertainty_choices as uncertainty
 from stats_arrays.distributions import *
diff --git a/activity_browser/utils.py b/activity_browser/utils.py
index cd3d6ab9d..0476ba763 100644
--- a/activity_browser/utils.py
+++ b/activity_browser/utils.py
@@ -2,7 +2,7 @@
 import requests
 from pathlib import Path
 import os
-from PySide2 import QtWidgets
+from PySide6 import QtWidgets
 
 from bw2data.filesystem import safe_filename
 
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 83da23423..7382ab81d 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -34,7 +34,7 @@ requirements:
     - pandas <=2.1.4
     - pint <=0.21
     - pyperclip
-    - pyside2 >=5.15.5
+    - pyside6 ==6.6.1
     - qt-webengine
     - salib >=1.4
     - seaborn
diff --git a/tests/test_add_default_data.py b/tests/test_add_default_data.py
index d03aa1b3f..6b223df55 100644
--- a/tests/test_add_default_data.py
+++ b/tests/test_add_default_data.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 import brightway2 as bw
-from PySide2 import QtCore, QtWidgets
+from PySide6 import QtCore, QtWidgets
 
 from activity_browser.signals import signals
 from activity_browser.ui.widgets.dialog import EcoinventVersionDialog
diff --git a/tests/test_calculation_setup.py b/tests/test_calculation_setup.py
index f2c4b5d15..326f218ac 100644
--- a/tests/test_calculation_setup.py
+++ b/tests/test_calculation_setup.py
@@ -1,5 +1,5 @@
 import brightway2 as bw
-from PySide2 import QtCore, QtWidgets
+from PySide6 import QtCore, QtWidgets
 
 def test_new_calculation_setup(qtbot, ab_app, monkeypatch):
     assert bw.projects.current == 'pytest_project'
diff --git a/tests/test_export_wizard.py b/tests/test_export_wizard.py
index 031187680..1c6d03f47 100644
--- a/tests/test_export_wizard.py
+++ b/tests/test_export_wizard.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 import brightway2 as bw
-from PySide2 import QtCore, QtWidgets
+from PySide6 import QtCore, QtWidgets
 
 from activity_browser.signals import signals
 from activity_browser.controllers.database import DatabaseController
diff --git a/tests/test_import_wizard.py b/tests/test_import_wizard.py
index 127649fdb..741f1f130 100644
--- a/tests/test_import_wizard.py
+++ b/tests/test_import_wizard.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 import brightway2 as bw
-from PySide2 import QtCore, QtWidgets
+from PySide6 import QtCore, QtWidgets
 
 from activity_browser.signals import signals
 from activity_browser.controllers.database import DatabaseController
diff --git a/tests/test_parameters.py b/tests/test_parameters.py
index 40d1ed52a..5bd38a1fc 100644
--- a/tests/test_parameters.py
+++ b/tests/test_parameters.py
@@ -2,7 +2,7 @@
 import brightway2 as bw
 from bw2data.parameters import (ActivityParameter, DatabaseParameter, Group,
                                 ProjectParameter)
-from PySide2 import QtCore, QtWidgets
+from PySide6 import QtCore, QtWidgets
 import pytest
 
 from activity_browser.signals import signals
diff --git a/tests/test_projects.py b/tests/test_projects.py
index 233302406..2bc7ed3fa 100644
--- a/tests/test_projects.py
+++ b/tests/test_projects.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 import brightway2 as bw
-from PySide2 import QtCore, QtWidgets
+from PySide6 import QtCore, QtWidgets
 
 from activity_browser.ui.widgets.dialog import ProjectDeletionDialog
 
diff --git a/tests/test_settings_wizard.py b/tests/test_settings_wizard.py
index d6934bc55..1e70132a6 100644
--- a/tests/test_settings_wizard.py
+++ b/tests/test_settings_wizard.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 import brightway2 as bw
-from PySide2.QtCore import Qt
-from PySide2.QtWidgets import QMessageBox, QWizard
+from PySide6.QtCore import Qt
+from PySide6.QtWidgets import QMessageBox, QWizard
 
 from activity_browser.ui.wizards.settings_wizard import SettingsWizard
 from activity_browser.settings import ab_settings
diff --git a/tests/test_uncertainty.py b/tests/test_uncertainty.py
index 4e948b6da..63368a90b 100644
--- a/tests/test_uncertainty.py
+++ b/tests/test_uncertainty.py
@@ -4,7 +4,7 @@
 multiple ways
 """
 import brightway2 as bw
-from PySide2 import QtCore, QtWidgets
+from PySide6 import QtCore, QtWidgets
 import pytest
 from stats_arrays.distributions import UndefinedUncertainty, UniformUncertainty
 
diff --git a/tests/test_uncertainty_wizard.py b/tests/test_uncertainty_wizard.py
index 2c44972fc..4113f3dc5 100644
--- a/tests/test_uncertainty_wizard.py
+++ b/tests/test_uncertainty_wizard.py
@@ -5,7 +5,7 @@
 
 from bw2data.parameters import ProjectParameter
 import numpy as np
-from PySide2.QtWidgets import QMessageBox, QWizard
+from PySide6.QtWidgets import QMessageBox, QWizard
 import pytest
 from stats_arrays.distributions import (
     LognormalUncertainty, UniformUncertainty, UndefinedUncertainty,
diff --git a/tests/test_widgets.py b/tests/test_widgets.py
index 7a1641f11..29980a34d 100644
--- a/tests/test_widgets.py
+++ b/tests/test_widgets.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
-from PySide2.QtCore import Qt
-from PySide2.QtWidgets import QDialogButtonBox, QMessageBox, QWidget
+from PySide6.QtCore import Qt
+from PySide6.QtWidgets import QDialogButtonBox, QMessageBox, QWidget
 
 from activity_browser.ui.widgets import (
     BiosphereUpdater, SwitchComboBox, CutoffMenu, ForceInputDialog,