diff --git a/core/composer.json b/core/composer.json
index 87e3926..4d129d2 100644
--- a/core/composer.json
+++ b/core/composer.json
@@ -4,7 +4,7 @@
   "type": "drupal-core",
   "license": "GPL-2.0+",
   "require": {
-    "php": ">=5.4.5",
+    "php": ">=5.5.0",
     "sdboyer/gliph": "0.1.*",
     "symfony/class-loader": "2.7.*",
     "symfony/console": "2.7.*",
diff --git a/core/composer.lock b/core/composer.lock
index 5363898..49eb17a 100644
--- a/core/composer.lock
+++ b/core/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "61a2b6dec8252d78e904d37fbf1637d7",
+    "hash": "5f1fe21cad82da54bab97374aed8842e",
     "packages": [
         {
             "name": "behat/mink",
@@ -3295,7 +3295,7 @@
     "prefer-stable": true,
     "prefer-lowest": false,
     "platform": {
-        "php": ">=5.4.5"
+        "php": ">=5.5.0"
     },
     "platform-dev": []
 }