diff --git a/package.json b/package.json
index 076776d..ed2045e 100644
--- a/package.json
+++ b/package.json
@@ -73,7 +73,7 @@
     "tslint-etc": "1.13.4",
     "tslint-microsoft-contrib": "6.2.0",
     "tslint-sonarts": "1.9.0",
-    "typescript": "3.9.7"
+    "typescript": "4.0.2"
   },
   "nyc": {
     "extends": "@istanbuljs/nyc-config-typescript"
diff --git a/yarn.lock b/yarn.lock
index 3850cf5..540a2db 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4388,10 +4388,10 @@ typedarray@^0.0.6:
   resolved "https://artifacts.apextoaster.com/repository/group-npm/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@3.9.7:
-  version "3.9.7"
-  resolved "https://artifacts.apextoaster.com/repository/group-npm/typescript/-/typescript-3.9.7.tgz#98d600a5ebdc38f40cb277522f12dc800e9e25fa"
-  integrity sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==
+typescript@4.0.2:
+  version "4.0.2"
+  resolved "https://artifacts.apextoaster.com/repository/group-npm/typescript/-/typescript-4.0.2.tgz#7ea7c88777c723c681e33bf7988be5d008d05ac2"
+  integrity sha512-e4ERvRV2wb+rRZ/IQeb3jm2VxBsirQLpQhdxplZ2MEzGvDkkMmPglecnNDfSUBivMjP93vRbngYYDQqQ/78bcQ==
 
 typescript@^3.0.0:
   version "3.6.3"