diff --git a/package.json b/package.json
index 3bd85603..77547375 100644
--- a/package.json
+++ b/package.json
@@ -34,6 +34,6 @@
     "semantic-ui-less": "^2.2.4"
   },
   "dependencies": {
-    "pxt-core": "0.8.1"
+    "pxt-core": "0.9.4"
   }
 }