diff --git a/.travis.yml b/.travis.yml
index dedab1c..b074cb3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -37,6 +37,7 @@ install:
       brew update;
       brew install mono;
       brew install python3;
+      brew tap homebrew/homebrew-php;
       brew install php71;
     fi
   # Download and setup a standalone flash player debugger