diff --git a/package.json b/package.json
index 9ca6d5ed..ab154b16 100644
--- a/package.json
+++ b/package.json
@@ -97,7 +97,7 @@
     "tinydate": "^1.2.0",
     "ts-jest": "^26.1.0",
     "typedoc": "^0.17.7",
-    "typescript": "^3.9.5"
+    "typescript": "^4.3.5"
   },
   "husky": {
     "hooks": {
diff --git a/yarn.lock b/yarn.lock
index 3ba07d1f..21c8d9d4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10301,10 +10301,10 @@ typedoc@^0.17.7:
     shelljs "^0.8.4"
     typedoc-default-themes "^0.10.1"
 
-typescript@^3.9.5:
-  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==
 
 uglify-js@^3.1.4:
   version "3.13.5"