diff --git a/.travis.yml b/.travis.yml
index f5c78bf..6c5eb98 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,7 @@ python:
     - 3.5
     - 3.6
 install:
+    - pip install -U setuptools==33.1.1
     - python bootstrap.py
     - bin/buildout
 script: