diff --git a/package.json b/package.json
index 340eb4e..2a2cd77 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
     "terser-webpack-plugin": "^2.0.0",
     "ts-jest": "^25.0.0",
     "ts-loader": "^7.0.0",
-    "typescript": "^3.5.3",
+    "typescript": "^4.0.0",
     "webpack": "^4.35.3",
     "webpack-cli": "^3.3.6",
     "webpack-merge": "^4.2.1"
diff --git a/yarn.lock b/yarn.lock
index 018be43..6807858 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11934,10 +11934,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@^3.5.3:
-  version "3.5.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.5.3.tgz#c830f657f93f1ea846819e929092f5fe5983e977"
-  integrity sha512-ACzBtm/PhXBDId6a6sDJfroT2pOWt/oOnk4/dElG5G33ZL776N3Y6/6bKZJBFpd+b05F3Ct9qDjMeJmRWtE2/g==
+typescript@^4.0.0:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.0.3.tgz#153bbd468ef07725c1df9c77e8b453f8d36abba5"
+  integrity sha512-tEu6DGxGgRJPb/mVPIZ48e69xCn2yRmCgYmDugAVwmJ6o+0u1RI18eO7E7WBTLYLaEVVOhwQmcdhQHweux/WPg==
 
 typeson-registry@^1.0.0-alpha.20:
   version "1.0.0-alpha.28"