diff --git a/.zuul.yaml b/.zuul.yaml
index 42d8b055..0c1cad33 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -3,6 +3,7 @@
       - check-requirements
       - lib-forward-testing-python3
       - openstack-lower-constraints-jobs
+      - openstack-python35-jobs
       - openstack-python3-ussuri-jobs
       - openstacksdk-functional-tips
       - openstacksdk-tox-tips
diff --git a/setup.cfg b/setup.cfg
index b1653b60..63bc6000 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -6,7 +6,7 @@ description-file =
 author = OpenStack
 author-email = openstack-discuss@lists.openstack.org
 home-page = https://docs.openstack.org/keystoneauth/latest/
-python-requires = >=3.6
+python-requires = >=3.5
 classifier =
     Environment :: OpenStack
     Intended Audience :: Information Technology
@@ -17,6 +17,7 @@ classifier =
     Programming Language :: Python :: Implementation :: CPython
     Programming Language :: Python :: 3 :: Only
     Programming Language :: Python :: 3
+    Programming Language :: Python :: 3.5
     Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
 
diff --git a/test-requirements.txt b/test-requirements.txt
index 5f8071c8..72517881 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -11,7 +11,6 @@ coverage!=4.4,>=4.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
 mock>=2.0.0 # BSD
 oslo.config>=5.2.0 # Apache-2.0
-openstackdocstheme>=2.0.0 # Apache-2.0
 oslo.utils>=3.33.0 # Apache-2.0
 oslotest>=3.2.0 # Apache-2.0
 betamax>=0.7.0 # Apache-2.0