diff --git a/package.json b/package.json
index 187e9bb7..e32d7ee3 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
   },
   "dependencies": {
     "pxt-common-packages": "0.22.7",
-    "pxt-core": "3.13.29"
+    "pxt-core": "3.18.9"
   },
   "scripts": {
     "test": "node node_modules/pxt-core/built/pxt.js travis"