diff --git a/.travis.yml b/.travis.yml
index 9575ea1..a79f854 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,7 +10,7 @@ python:
 
 install:
   - pip install --upgrade pip setuptools
-  - pip install .[test]
+  - pip install --upgrade .[test]
 
 script: py.test pygal/ --flake8 --cov-report= --cov=pygal