diff --git a/.travis.yml b/.travis.yml
index 7917e3f..c6c83c9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,7 +15,7 @@ matrix:
   fast_finish: true
   include:
     - php: 5.6
-      env: setup=lowest
+      env: setup=basic
     - php: 5.6
       env: setup=stable
 
@@ -26,6 +26,7 @@ cache:
     - $HOME/.composer/cache
 
 before_install:
+  - phpenv config-rm xdebug.ini
   - travis_retry composer self-update
 
 install: