diff --git a/.travis.yml b/.travis.yml
index f46a6b5..b68cc1f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,7 +7,7 @@ cache:
     - $HOME/.composer/cache
 
 php:
- - 5.6
+ - 5.4
  - 7.0
 
 env: