diff --git a/package.json b/package.json
index 22486492..8fb9b610 100644
--- a/package.json
+++ b/package.json
@@ -30,6 +30,6 @@
     "typescript": "^1.8.7"
   },
   "dependencies": {
-    "pxt-core": "0.5.1"
+    "pxt-core": "0.5.3"
   }
 }