diff --git a/composer.json b/composer.json
index c595aaf..8146c0b 100644
--- a/composer.json
+++ b/composer.json
@@ -31,7 +31,7 @@
   "minimum-stability": "dev",
   "prefer-stable":     true,
   "require":     {
-    "dreamfactory/df-core": "~0.20.0",
+    "dreamfactory/df-core": "~0.21.0",
     "guzzlehttp/guzzle":    "~6.0"
   },
   "require-dev": {