diff --git a/package.json b/package.json
index 96bcc4d2..ddc48d46 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
   },
   "dependencies": {
     "deep-equal": "~1.0.0",
-    "defined": "~0.0.0",
+    "defined": "~1.0.0",
     "function-bind": "~1.0.2",
     "glob": "~5.0.3",
     "has": "~1.0.1",