diff --git a/.github/workflows/unit-test.yml b/.github/workflows/unit-test.yml
index badc228..3ea8959 100644
--- a/.github/workflows/unit-test.yml
+++ b/.github/workflows/unit-test.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9, "3.10", 3.11]
+        python-version: [3.8, 3.9, "3.10", 3.11, 3.12]
 
     steps:
     - uses: actions/checkout@v3
@@ -23,6 +23,7 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
+        allow-prereleases: true
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
diff --git a/README.md b/README.md
index 78682e8..933558b 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ Install with `pip`:
 pip install flake8-simplify
 ```
 
-Python 3.6 to 3.10 are supported.
+Python 3.8 to 3.11 are supported.
 
 
 ## Usage
diff --git a/pyproject.toml b/pyproject.toml
index 5f3058d..69cfc8a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,10 +29,10 @@ classifiers = [
     "Operating System :: OS Independent",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.7",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
     "Topic :: Software Development",
     "Framework :: Flake8",
 ]
@@ -57,7 +57,7 @@ namespaces = false
 
 [tool.black]
 line-length = 79
-target-version = ['py37']
+target-version = ['py38']
 
 [tool.mutmut]
 backup = "False"
diff --git a/tox.ini b/tox.ini
index 9b3f843..69d2e53 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = lint,py36,py37,py38,py39,python3.10
+envlist = lint,py38,py39,py310,py311
 
 [testenv]
 deps =