diff --git a/.travis.yml b/.travis.yml
index c20b26a..7de2901 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -46,7 +46,7 @@ matrix:
   include:
     - python: 3.5
       env:
-      - TOX_ENV=py35-tw155
+      - TOX_ENV=py35-tw154
 
     # Twisted trunk
     - python: 3.5