diff --git a/.zuul.yaml b/.zuul.yaml
index 5ea431400f..456f026527 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -35,6 +35,7 @@
 - job:
     name: swift-tox-py35
     parent: swift-tox-base
+    nodeset: ubuntu-xenial
     description: |
       Run unit-tests for swift under cPython version 3.5.