diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index 2e7c504..e67c883 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 65d66b8..de9cfbc 100644
--- a/HACKING.rst
+++ b/HACKING.rst
@@ -1,4 +1,4 @@
 python-freezerclient Style Commandments
 =======================================
 
-Read the OpenStack Style Commandments http://docs.openstack.org/developer/hacking/
+Read the OpenStack Style Commandments https://docs.openstack.org/developer/hacking/
diff --git a/README.rst b/README.rst
index e29f31b..32b0e36 100644
--- a/README.rst
+++ b/README.rst
@@ -39,4 +39,4 @@ Development takes place via the usual OpenStack processes as outlined in the `de
 .. _Blueprints: https://blueprints.launchpad.net/python-freezerclient
 .. _Bugs: https://bugs.launchpad.net/python-freezerclient
 .. _Source: https://git.openstack.org/cgit/openstack/python-freezerclient
-.. _How to Contribute: http://docs.openstack.org/infra/manual/developers.html
+.. _How to Contribute: https://docs.openstack.org/infra/manual/developers.html