diff --git a/docs/main/changelog.rst b/docs/main/changelog.rst
index 75b5c1c1..ddd1ada4 100644
--- a/docs/main/changelog.rst
+++ b/docs/main/changelog.rst
@@ -7,8 +7,8 @@ that were made in every particular version.
 From version 0.7.6 *Dependency Injector* framework strictly 
 follows `Semantic versioning`_
 
-Development version
--------------------
+3.20.0
+------
 - Add ``Flask`` integration module ``dependency_injector.flask.ext``.
 - Add ``Flask`` + ``Dependency Injector`` example ``ghnav-flask``.
 - Add ``Factory.provides`` attribute. It is an alias to the ``Factory.cls``.
diff --git a/src/dependency_injector/__init__.py b/src/dependency_injector/__init__.py
index ad50da4c..f722ee16 100644
--- a/src/dependency_injector/__init__.py
+++ b/src/dependency_injector/__init__.py
@@ -1,6 +1,6 @@
 """Dependency injector top-level package."""
 
-__version__ = '3.19.2'
+__version__ = '3.20.0'
 """Version number that follows semantic versioning.
 
 :type: str