diff --git a/.travis.yml b/.travis.yml
index 010c741..27e355f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,6 @@
 language: php
 
 php:
-  - 5.4
   - 5.5
   - 5.6
 
diff --git a/composer.json b/composer.json
index 53acf24..b5f307b 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
         }
     ],
     "require": {
-        "php": ">=5.4.0",
+        "php": ">=5.5.0",
         "guzzlehttp/guzzle": "^6.0",
         "socialnorm/socialnorm": "^0.2"
     },