diff --git a/package.json b/package.json
index d71b212..5e0288e 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "serve": "^11.3.2",
     "styled-components": "^4.4.0",
     "tsutils": "^3.17.1",
-    "typescript": "^3.9.7"
+    "typescript": "^4.3.5"
   },
   "scripts": {
     "start": "react-scripts start",
diff --git a/yarn.lock b/yarn.lock
index a186828..8694fd4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11083,10 +11083,10 @@ 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@^4.3.5:
+  version "4.3.5"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.3.5.tgz#4d1c37cc16e893973c45a06886b7113234f119f4"
+  integrity sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==
 
 unicode-canonical-property-names-ecmascript@^1.0.4:
   version "1.0.4"