diff --git a/package.json b/package.json
index 158ffb6f..d3a971bd 100644
--- a/package.json
+++ b/package.json
@@ -29,6 +29,8 @@
     "typescript": "^1.8.7"
   },
   "dependencies": {
-    "pxt-core": "0.4.71"
+    "pxt-core": "0.4.71",
+    "less": "^2.6.0",
+    "semantic-ui-less": "^2.2.4"    
   }
 }