diff --git a/package.json b/package.json
index 8daf035..33a8d87 100644
--- a/package.json
+++ b/package.json
@@ -20,6 +20,6 @@
   "devDependencies": {
     "@types/node": "8.5.7",
     "tslint": "5.8.0",
-    "typescript": "2.6.2"
+    "typescript": "5.4.4"
   }
 }