diff --git a/package.json b/package.json
index 7205268..3e8d30b 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "gulp-pug": "^3.3.0",
     "gulp-sass": "^3.1.0",
     "gulp-standard": "^10.0.0",
-    "gulp-typescript": "^3.1.7",
+    "gulp-typescript": "^4.0.1",
     "gulp-yarn": "^1.0.0",
     "typescript": "^2.3.4"
   },