diff --git a/package.json b/package.json
index a960c9c9..28f7a3af 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,7 @@
   },
   "dependencies": {
     "pxt-common-packages": "0.20.38",
-    "pxt-core": "3.8.3"
+    "pxt-core": "3.8.6"
   },
   "scripts": {
     "test": "node node_modules/pxt-core/built/pxt.js travis"