diff --git a/.travis.yml b/.travis.yml
index db0de6b..4e839dc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,7 +11,7 @@ matrix:
       os: osx
       before_install:
         - brew update
-        - brew install python3
+        - brew upgrade python
         - virtualenv env -p python3
         - source env/bin/activate
     - language: python