diff --git a/README.rst b/README.rst
index 00a44d28..6537ae48 100644
--- a/README.rst
+++ b/README.rst
@@ -41,6 +41,9 @@ Status
 | *Builds and tests coverage*           | .. image:: https://travis-ci.org/ets-labs/python-dependency-injector.svg?branch=master                             |
 |                                       |    :target: https://travis-ci.org/ets-labs/python-dependency-injector                                              |
 |                                       |    :alt: Build Status                                                                                              |
+|                                       | .. image:: http://readthedocs.org/projects/python-dependency-injector/badge/?version=latest                        |
+|                                       |    :target: http://python-dependency-injector.ets-labs.org/                                                        |
+|                                       |    :alt: Docs Status                                                                                               |
 |                                       | .. image:: https://coveralls.io/repos/github/ets-labs/python-dependency-injector/badge.svg?branch=master           |
 |                                       |    :target: https://coveralls.io/github/ets-labs/python-dependency-injector?branch=master                          |
 |                                       |    :alt: Coverage Status                                                                                           |
diff --git a/docs/index.rst b/docs/index.rst
index f818cfa8..ded5136b 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -56,6 +56,9 @@ Status
 | *Builds and tests coverage*           | .. image:: https://travis-ci.org/ets-labs/python-dependency-injector.svg?branch=master                             |
 |                                       |    :target: https://travis-ci.org/ets-labs/python-dependency-injector                                              |
 |                                       |    :alt: Build Status                                                                                              |
+|                                       | .. image:: http://readthedocs.org/projects/python-dependency-injector/badge/?version=latest                        |
+|                                       |    :target: http://python-dependency-injector.ets-labs.org/                                                        |
+|                                       |    :alt: Docs Status                                                                                               |
 |                                       | .. image:: https://coveralls.io/repos/github/ets-labs/python-dependency-injector/badge.svg?branch=master           |
 |                                       |    :target: https://coveralls.io/github/ets-labs/python-dependency-injector?branch=master                          |
 |                                       |    :alt: Coverage Status                                                                                           |
diff --git a/docs/main/changelog.rst b/docs/main/changelog.rst
index a6a402b0..db5912f8 100644
--- a/docs/main/changelog.rst
+++ b/docs/main/changelog.rst
@@ -7,6 +7,12 @@ that were made in every particular version.
 From version 0.7.6 *Dependency Injector* framework strictly 
 follows `Semantic versioning`_
 
+3.9.1
+-----
+- Fix docs build problem (``sphinx`` is frozen on ``1.5.6`` version because of
+  incompatibility with ``sphinxcontrib-discus``). 
+- Add badge for docs.
+
 3.9.0
 -----
 - Change initialization of declarative container, so it accepts overriding 
diff --git a/src/dependency_injector/__init__.py b/src/dependency_injector/__init__.py
index 4cfb317a..fc134aa8 100644
--- a/src/dependency_injector/__init__.py
+++ b/src/dependency_injector/__init__.py
@@ -1,6 +1,6 @@
 """Dependency injector top-level package."""
 
-__version__ = '3.9.0'
+__version__ = '3.9.1'
 """Version number that follows semantic versioning.
 
 :type: str