diff --git a/.zuul.yaml b/.zuul.yaml
index 1bfa4c3..9dd1d99 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -12,10 +12,10 @@
       - openstack/os-client-config
 
 - job:
-    name: os-client-config-tox-py35-tips
-    parent: openstack-tox-py35
+    name: os-client-config-tox-py37-tips
+    parent: openstack-tox-py37
     description: |
-      Run tox python 35 unittests against master of important libs
+      Run tox python 37 unittests against master of important libs
     vars:
       tox_install_siblings: true
       zuul_work_dir: src/git.openstack.org/openstack/os-client-config
@@ -29,11 +29,11 @@
     check:
       jobs:
         - os-client-config-tox-py27-tips
-        - os-client-config-tox-py35-tips
+        - os-client-config-tox-py37-tips
     gate:
       jobs:
         - os-client-config-tox-py27-tips
-        - os-client-config-tox-py35-tips
+        - os-client-config-tox-py37-tips
 
 - project:
     templates:
@@ -43,8 +43,8 @@
       - check-requirements
       - publish-openstack-docs-pti
       - openstack-python-jobs
-      - openstack-python35-jobs
       - openstack-python36-jobs
+      - openstack-python37-jobs
       - lib-forward-testing
       - lib-forward-testing-python3
       - release-notes-jobs-python3
diff --git a/tox.ini b/tox.ini
index 6f52fd2..0b1669b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 minversion = 1.6
-envlist = py35,py27,pep8
+envlist = py37,py27,pep8
 skipsdist = True
 
 [testenv]