diff --git a/.travis.yml b/.travis.yml
index ae941275..c1537e6f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,16 +1,11 @@
 language: php
 
 php:
-  - 5.4
+  - 5.5.9
   - 5.5
   - 5.6
-  - nightly
   - hhvm
 
-matrix:
-  allow_failures:
-    - php: nightly
-
 sudo: false
 
 install: travis_retry composer install --no-interaction --ignore-platform-reqs --no-scripts --prefer-source