diff --git a/HISTORY.rst b/HISTORY.rst
index 1adea0962..7a26f50e3 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -1,28 +1,22 @@
 *Bug tracker at https://github.com/giampaolo/psutil/issues*
 
-5.5.1
+5.5.0
 =====
 
+XXXX-XX-XX
+
 **Enhancements**
 
+- 1350_: [FreeBSD] added support for sensors_temperatures().  (patch by Alex
+  Manuskin)
 - 1352_: [FreeBSD] added support for CPU frequency.  (patch by Alex Manuskin)
 
 **Bug fixes**
 
+- 1354_: [Linux] disk_io_counters() fails on Linux kernel 4.18+.
 - 1368_: [Windows] fix psutil.Process().ionice(...) mismatch.  (patch by
   EccoTheFlintstone)
 
-5.5.0
-=====
-
-**Enhancements**
-
-- 1350_: [FreeBSD] added support for sensors_temperatures().
-
-**Bug fixes**
-
-- 1354_: [Linux] disk_io_counters() fails on Linux kernel 4.18+.
-
 5.4.8
 =====
 
diff --git a/psutil/__init__.py b/psutil/__init__.py
index 3548cdcce..5a5720d7a 100644
--- a/psutil/__init__.py
+++ b/psutil/__init__.py
@@ -220,7 +220,7 @@
 ]
 __all__.extend(_psplatform.__extra__all__)
 __author__ = "Giampaolo Rodola'"
-__version__ = "5.5.1"
+__version__ = "5.5.0"
 version_info = tuple([int(num) for num in __version__.split('.')])
 AF_LINK = _psplatform.AF_LINK
 POWER_TIME_UNLIMITED = _common.POWER_TIME_UNLIMITED