diff --git a/.travis.yml b/.travis.yml
index 509e469..a5eb780 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,6 @@ language: php
 sudo: false
 
 php:
-    - 5.4
     - 5.5
     - 5.6
     - 7.0
diff --git a/composer.json b/composer.json
index 063aba5..78e9bed 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
         }
     ],
     "require": {
-        "php": "^5.4|^7.0",
+        "php": "^5.5|^7.0",
         "psr/cache": "^1.0",
         "cache/void-adapter": "^0.3",
         "php-http/httplug": "^1.0",