diff --git a/composer.json b/composer.json
index a6e56c8..ed6c021 100644
--- a/composer.json
+++ b/composer.json
@@ -47,5 +47,10 @@
     "psr-4": {
       "Pecee\\": "src/Pecee/"
     }
+  },
+  "config": {
+    "allow-plugins": {
+      "ocramius/package-versions": true
+    }
   }
 }
\ No newline at end of file