diff --git a/package.json b/package.json
index eebdd34d..daaf1f0e 100644
--- a/package.json
+++ b/package.json
@@ -41,6 +41,6 @@
     "@types/node": "8.0.53"
   },
   "dependencies": {
-    "pxt-core": "3.20.16"
+    "pxt-core": "3.21.16"
   }
 }