diff --git a/package.json b/package.json
index 2b2a9df..5062c98 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "babel-eslint": "^10.1.0",
     "eslint": "^6.6.0",
     "eslint-plugin-vue": "^6.0.1",
-    "typescript": "^3.9.7",
+    "typescript": "^4.0.8",
     "vue-template-compiler": "^2.6.11"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index b485e31..49b1bb4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8732,10 +8732,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@^3.9.7:
-  version "3.9.7"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.7.tgz#98d600a5ebdc38f40cb277522f12dc800e9e25fa"
-  integrity sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==
+typescript@^4.0.8:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.0.8.tgz#5739105541db80a971fdbd0d56511d1a6f17d37f"
+  integrity sha512-oz1765PN+imfz1MlZzSZPtC/tqcwsCyIYA8L47EkRnRW97ztRk83SzMiWLrnChC0vqoYxSU1fcFUDA5gV/ZiPg==
 
 uglify-js@3.4.x:
   version "3.4.10"