diff --git a/package.json b/package.json
index ac15e474..95eac5bc 100644
--- a/package.json
+++ b/package.json
@@ -45,8 +45,8 @@
     "webfonts-generator": "^0.4.0"
   },
   "dependencies": {
-    "pxt-common-packages": "0.19.5",
-    "pxt-core": "3.4.8"
+    "pxt-common-packages": "0.20.3",
+    "pxt-core": "3.4.9"
   },
   "scripts": {
     "test": "node node_modules/pxt-core/built/pxt.js travis"