diff --git a/package.json b/package.json
index fac6e13..4a087c8 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "react": "^16.9.0",
     "react-dom": "^16.9.0",
     "react-scripts": "3.1.1",
-    "typescript": "3.5.3"
+    "typescript": "4.3.5"
   },
   "scripts": {
     "start": "react-scripts start",
diff --git a/yarn.lock b/yarn.lock
index e2a4c50..b2d5157 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10564,10 +10564,10 @@ 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@4.3.5:
+  version "4.3.5"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.3.5.tgz#4d1c37cc16e893973c45a06886b7113234f119f4"
+  integrity sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==
 
 uglify-js@3.4.x:
   version "3.4.10"