diff --git a/.travis.yml b/.travis.yml
index 5d1465fb..a9d61238 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -32,7 +32,7 @@ matrix:
         - "PYTHON=python3"
       before_install:
         - brew update
-        - brew install python3
+        - brew outdated python || brew upgrade python
 
 script:
   - |