diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index 44ce736..60d47b6 100644
--- a/CONTRIBUTING.rst
+++ b/CONTRIBUTING.rst
@@ -1,14 +1,14 @@
 If you would like to contribute to the development of OpenStack, you must
 follow the steps in this page:
 
-   http://docs.openstack.org/infra/manual/developers.html
+   https://docs.openstack.org/infra/manual/developers.html
 
 If you already have a good understanding of how the system works and your
 OpenStack accounts are set up, you can skip to the development workflow
 section of this documentation to learn how changes to OpenStack should be
 submitted for review via the Gerrit tool:
 
-   http://docs.openstack.org/infra/manual/developers.html#development-workflow
+   https://docs.openstack.org/infra/manual/developers.html#development-workflow
 
 Pull requests submitted through GitHub will be ignored.
 
diff --git a/HACKING.rst b/HACKING.rst
index 805ffac..d63dd4e 100644
--- a/HACKING.rst
+++ b/HACKING.rst
@@ -1,4 +1,4 @@
 congress-tempest-plugin Style Commandments
-===============================================
+==========================================
 
 Read the OpenStack Style Commandments https://docs.openstack.org/hacking/latest/
diff --git a/README.rst b/README.rst
index 3d5ecc4..ebbe201 100644
--- a/README.rst
+++ b/README.rst
@@ -1,6 +1,6 @@
-===============================
+=======================
 congress-tempest-plugin
-===============================
+=======================
 
 Tempest Plugin for Congress project.
 This project covers Tempest tests for Congress project.
diff --git a/test-requirements.txt b/test-requirements.txt
index 43a96a3..f7b612e 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -5,7 +5,8 @@
 hacking>=1.1.0,<1.2.0 # Apache-2.0
 
 coverage!=4.4,>=4.0 # Apache-2.0
-sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
+sphinx!=1.6.6,!=1.6.7,>=1.6.2,<2.0.0;python_version=='2.7'  # BSD
+sphinx!=1.6.6,!=1.6.7,>=1.6.2;python_version>='3.4'  # BSD
 openstackdocstheme>=1.18.1 # Apache-2.0
 
 # releasenotes