diff --git a/composer.json b/composer.json
index 1b21bee..d42e7a3 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
   "minimum-stability": "dev",
   "prefer-stable": true,
   "require":     {
-    "dreamfactory/df-core":   "~0.25",
+    "dreamfactory/df-core":   "~1.0",
     "dreamfactory/df-system": "~0.5"
   },
   "require-dev": {