diff --git a/package.json b/package.json
index 416ad4ff..3c69067d 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "semantic-ui-less": "^2.2.4"
   },
   "dependencies": {
-    "pxt-core": "0.11.66"
+    "pxt-core": "0.11.73"
   },
   "scripts": {
     "test": "node node_modules/pxt-core/built/pxt.js travis"