diff --git a/package.json b/package.json
index 0d6c9f4..c5cd5b6 100644
--- a/package.json
+++ b/package.json
@@ -68,7 +68,7 @@
     "style-loader": "0.13.1",
     "tslint": "4.2.0",
     "tslint-loader": "3.3.0",
-    "typescript": "2.1.4",
+    "typescript": "2.3.4",
     "webpack": "1.14.0",
     "webpack-dev-server": "1.16.2",
     "zone.js": "0.7.4"