diff --git a/package.json b/package.json
index a012c95d..0cf6eedb 100644
--- a/package.json
+++ b/package.json
@@ -34,6 +34,6 @@
     "semantic-ui-less": "^2.2.4"
   },
   "dependencies": {
-    "pxt-core": "0.5.77"
+    "pxt-core": "0.5.78"
   }
 }