diff --git a/package.json b/package.json
index 978f240016ef606f18befd01d0cba49da28ecf9e..9a6d2ee5479aa927da7022113f479d602b4e4d49 100644
--- a/package.json
+++ b/package.json
@@ -123,7 +123,7 @@
     "tmp": "0.0.29",
     "ts-node": "^3.3.0",
     "typedoc-plugin-sourcefile-url": "^1.0.3",
-    "typescript": "^2.8.1"
+    "typescript": "~2.8.1"
   },
   "peerDependencies": {},
   "bin": {