diff --git a/docs/main/changelog.rst b/docs/main/changelog.rst
index 4ecff0a5..3cbecc04 100644
--- a/docs/main/changelog.rst
+++ b/docs/main/changelog.rst
@@ -7,6 +7,10 @@ that were made in every particular version.
 From version 0.7.6 *Dependency Injector* framework strictly 
 follows `Semantic versioning`_
 
+4.5.1
+-----
+- Fix flake8 issue in ``Commands  and Handlers`` example.
+
 4.5.0
 -----
 - Add support of non-string keys for ``Dict`` provider.
diff --git a/examples/miniapps/commands-and-handlers/application/commands.py b/examples/miniapps/commands-and-handlers/application/commands.py
index b5510b2a..7abd8344 100644
--- a/examples/miniapps/commands-and-handlers/application/commands.py
+++ b/examples/miniapps/commands-and-handlers/application/commands.py
@@ -1,5 +1,6 @@
 """Commands module."""
 
+
 class Command:
     ...
 
diff --git a/src/dependency_injector/__init__.py b/src/dependency_injector/__init__.py
index 0aa7356f..a48eb83f 100644
--- a/src/dependency_injector/__init__.py
+++ b/src/dependency_injector/__init__.py
@@ -1,6 +1,6 @@
 """Top-level package."""
 
-__version__ = '4.5.0'
+__version__ = '4.5.1'
 """Version number.
 
 :type: str