diff --git a/package.json b/package.json
index 6dae8c2..4a14a8b 100644
--- a/package.json
+++ b/package.json
@@ -57,6 +57,6 @@
     "eslint": "^7.1.0",
     "father": "^2.13.2",
     "np": "^5.0.3",
-    "typescript": "^3.5.2"
+    "typescript": "^4.0.3"
   }
 }