diff --git a/.travis.yml b/.travis.yml
index 5bd57ec..2244fa6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,6 @@
 language: php
 
 php:
-  - 5.3
   - 5.4
   - 5.5
   - 5.6
diff --git a/composer.json b/composer.json
index 2fbe96e..8324c12 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
         }
     ],
     "require" : {
-        "php" : ">=5.3.0",
+        "php" : ">=5.4.0",
         "ext-curl" : "*",
         "ext-json" : "*"
     },