diff --git a/package.json b/package.json
index ba63b01..1b5a5af 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
 		"striptags": "^3.1.1",
 		"tar-fs": "^2.0.0",
 		"ts-jest": "^24.0.0",
-		"typescript": "^3.1.6",
+		"typescript": "^4.0.0",
 		"useragent": "^2.3.0"
 	},
 	"scripts": {
diff --git a/yarn.lock b/yarn.lock
index 3fe8b66..4c3533a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4825,10 +4825,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@^3.1.6:
-  version "3.6.4"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.6.4.tgz#b18752bb3792bc1a0281335f7f6ebf1bbfc5b91d"
-  integrity sha512-unoCll1+l+YK4i4F8f22TaNVPRHcD9PA3yCuZ8g5e0qGqlVlJ/8FSateOLLSagn+Yg5+ZwuPkL8LFUc0Jcvksg==
+typescript@^4.0.0:
+  version "4.0.5"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.0.5.tgz#ae9dddfd1069f1cb5beb3ef3b2170dd7c1332389"
+  integrity sha512-ywmr/VrTVCmNTJ6iV2LwIrfG1P+lv6luD8sUJs+2eI9NLGigaN+nUQc13iHqisq7bra9lnmUSYqbJvegraBOPQ==
 
 uglify-js@^3.1.4:
   version "3.6.6"