diff --git a/docs/main/changelog.rst b/docs/main/changelog.rst
index 42197944..757a9edd 100644
--- a/docs/main/changelog.rst
+++ b/docs/main/changelog.rst
@@ -11,6 +11,13 @@ Development version
 -------------------
 - No features.
 
+3.3.7
+-----
+- Fix minor bug related to patch of ``Configuration`` provider in version
+  3.3.6 - special attribues were identified by formula ``__{text}`` - now
+  they are identified by formula ``__{text}__``, that is more correct
+  according to Python Data Model.
+
 3.3.6
 -----
 - Patch ``Configuration`` provider to raise ``AttributeError`` when there
diff --git a/src/dependency_injector/__init__.py b/src/dependency_injector/__init__.py
index 56a7cbe6..99fe0e10 100644
--- a/src/dependency_injector/__init__.py
+++ b/src/dependency_injector/__init__.py
@@ -1,6 +1,6 @@
 """Dependency injector top-level package."""
 
-__version__ = '3.3.6'
+__version__ = '3.3.7'
 """Version number that follows semantic versioning.
 
 :type: str