diff --git a/.zuul.yaml b/.zuul.yaml
index 6c86100..ad344ce 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -7,12 +7,14 @@
     check:
       jobs:
         - tox-pep8
-        - tox-py35
+        - tox-py35:
+            nodeset: ubuntu-xenial
         - tox-py36:
             nodeset: ubuntu-bionic
     gate:
       jobs:
         - tox-pep8
-        - tox-py35
+        - tox-py35:
+            nodeset: ubuntu-xenial
         - tox-py36:
             nodeset: ubuntu-bionic