diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index 3708e41..88682e7 100644
--- a/CONTRIBUTING.rst
+++ b/CONTRIBUTING.rst
@@ -1,15 +1,15 @@
 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.
 
-Bugs should be filed on Launchpadhttps://bugs.launchpad.net/fenix
\ No newline at end of file
+Bugs should be filed on Launchpad https://storyboard.openstack.org/#!/project/x/fenix
diff --git a/doc/requirements.txt b/doc/requirements.txt
index 03105b0..cf70631 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,4 +1,10 @@
-sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
+# The order of packages is significant, because pip processes them in the order
+# of appearance. Changing the order has an impact on the overall integration
+# process, which may cause wedges in the gate later.
+# These are needed for docs generation
+
+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
 os-api-ref>=1.6.0 # Apache-2.0
 sphinxcontrib-seqdiag>=0.8.4  # BSD