diff --git a/CHANGES.md b/CHANGES.md
index 848d58a0..09134c6b 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,7 +1,8 @@
 # pyfakefs Release Notes
 The released versions correspond to PyPi releases.
 
-## Unreleased
+## [Version 4.5.5](https://pypi.python.org/pypi/pyfakefs/4.5.5) (2022-02-14)
+Bugfix release, needed for compatibility with pytest 7.0.
 
 ### Fixes
 * correctly handle file system space for files opened in write mode
diff --git a/docs/conf.py b/docs/conf.py
index 73a59d8e..250ab46b 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -66,9 +66,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '4.6'
+version = '4.5.5'
 # The full version, including alpha/beta/rc tags.
-release = '4.6.dev0'
+release = '4.5.5'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/pyfakefs/_version.py b/pyfakefs/_version.py
index 37846a06..b4625066 100644
--- a/pyfakefs/_version.py
+++ b/pyfakefs/_version.py
@@ -1 +1 @@
-__version__ = '4.6.dev0'
+__version__ = '4.5.5'