diff --git a/package.json b/package.json
index 162e8d8fe..58d2a2754 100644
--- a/package.json
+++ b/package.json
@@ -61,7 +61,7 @@
     "svg-url-loader": "^6.0.0",
     "taiko": "^1.2.2",
     "terser-webpack-plugin": "^3.0.6",
-    "typescript": "~3.9.3",
+    "typescript": "~4.3.4",
     "webpack": "^4.43.0",
     "webpack-cli": "^3.3.12"
   },
diff --git a/yarn.lock b/yarn.lock
index 09515e06a..07d207588 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -14393,15 +14393,10 @@ typedarray@^0.0.6, typedarray@~0.0.5:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@^4.0.3:
-  version "4.2.4"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.2.4.tgz#8610b59747de028fda898a8aef0e103f156d0961"
-  integrity sha512-V+evlYHZnQkaz8TRBuxTA92yZBPotr5H+WhQ7bD3hZUndx5tGOa1fuCgeSjxAzM1RiN5IzvadIXTVefuuwZCRg==
-
-typescript@~3.9.3:
-  version "3.9.9"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.9.tgz#e69905c54bc0681d0518bd4d587cc6f2d0b1a674"
-  integrity sha512-kdMjTiekY+z/ubJCATUPlRDl39vXYiMV9iyeMuEuXZh2we6zz80uovNN2WlAxmmdE/Z/YQe+EbOEXB5RHEED3w==
+typescript@^4.0.3, typescript@~4.3.4:
+  version "4.3.4"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.3.4.tgz#3f85b986945bcf31071decdd96cf8bfa65f9dcbc"
+  integrity sha512-uauPG7XZn9F/mo+7MrsRjyvbxFpzemRjKEZXS4AK83oP2KKOJPvb+9cO/gmnv8arWZvhnjVOXz7B49m1l0e9Ew==
 
 typescript@~4.1.5:
   version "4.1.5"