diff --git a/composer.json b/composer.json
index d7dc9b4..8596f78 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
             "role": "Developer"
         }
     ],
-    "license": "MIT",
+    "license": "GPL-3.0",
     "type": "project",
     "require": {
         "php": "5.6.*",