diff --git a/package.json b/package.json
index f92238c26..fdd21ed14 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "grunt-string-replace": "^1.0.0",
     "grunt-ts": "^5.5.1",
     "rimraf": "^2.6.0",
-    "typescript": "2.1.6"
+    "typescript": "2.2.1"
   },
   "keywords": [
     "typescript",