change http links to https links
Change-Id: I9875b8db497129baebadc8e74cf602ea1c063cbd
diff --git a/doc/source/plugin.rst b/doc/source/plugin.rst
index 9958792..dc0e94c 100644
--- a/doc/source/plugin.rst
+++ b/doc/source/plugin.rst
@@ -96,7 +96,7 @@
that users don't have to worry about inadvertently installing a Tempest plugin
when they install another package.
-.. _Branchless Tempest Spec: http://specs.openstack.org/openstack/qa-specs/specs/tempest/implemented/branchless-tempest.html
+.. _Branchless Tempest Spec: https://specs.openstack.org/openstack/qa-specs/specs/tempest/implemented/branchless-tempest.html
The sole advantage to integrating a plugin into an existing python project is
that it enables you to land code changes at the same time you land test changes