diff --git a/.travis.yml b/.travis.yml
index 8c3a2996..aa251129 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,6 @@ language: php
 sudo: false
 
 php:
-  - 5.3
   - 5.4
   - 5.5
   - 5.6
diff --git a/bin/pscss b/bin/pscss
index f4b7ba8f..4dd5136a 100755
--- a/bin/pscss
+++ b/bin/pscss
@@ -12,8 +12,8 @@
 
 error_reporting(E_ALL);
 
-if (version_compare(PHP_VERSION, '5.3') < 0) {
-    die('Requires PHP 5.3 or above');
+if (version_compare(PHP_VERSION, '5.4') < 0) {
+    die('Requires PHP 5.4 or above');
 }
 
 include __DIR__ . '/../scss.inc.php';
diff --git a/composer.json b/composer.json
index 4a1a4e13..691a68a2 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
         "psr-4": { "Leafo\\ScssPhp\\Test\\": "tests/" }
     },
     "require": {
-        "php": ">=5.3.0"
+        "php": ">=5.4.0"
     },
     "require-dev": {
         "squizlabs/php_codesniffer": "~2.3",
diff --git a/scss.inc.php b/scss.inc.php
index 4d2e6152..b7409a48 100644
--- a/scss.inc.php
+++ b/scss.inc.php
@@ -1,6 +1,6 @@
 <?php
-if (version_compare(PHP_VERSION, '5.3') < 0) {
-    die('Requires PHP 5.3 or above');
+if (version_compare(PHP_VERSION, '5.4') < 0) {
+    die('Requires PHP 5.4 or above');
 }
 
 if (! class_exists('scssc', false)) {