diff --git a/package.json b/package.json
index d7a5b576..80d1b18c 100644
--- a/package.json
+++ b/package.json
@@ -90,6 +90,6 @@
         "rollup": "2.23.1",
         "rollup-plugin-terser": "7.0.0",
         "rollup-plugin-typescript2": "0.27.2",
-        "typescript": "3.9.7"
+        "typescript": "4.0.2"
     }
 }
diff --git a/yarn.lock b/yarn.lock
index 0d5ea1dd..14b52b75 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4944,10 +4944,10 @@ typedarray-to-buffer@^3.1.5:
   dependencies:
     is-typedarray "^1.0.0"
 
-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@4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.0.2.tgz#7ea7c88777c723c681e33bf7988be5d008d05ac2"
+  integrity sha512-e4ERvRV2wb+rRZ/IQeb3jm2VxBsirQLpQhdxplZ2MEzGvDkkMmPglecnNDfSUBivMjP93vRbngYYDQqQ/78bcQ==
 
 uglify-js@^3.1.4:
   version "3.10.1"