diff --git a/package.json b/package.json
index c3055ed8..5f134857 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
     "sorcery": "^0.10.0",
     "tmp-promise": "^2.0.1",
     "tslib": "^1.9.3",
-    "typescript": "^3.2.2",
+    "typescript": "^4.0.2",
     "ws": "^7.0.0"
   },
   "bin": {
diff --git a/yarn.lock b/yarn.lock
index 02fc675e..21992ce6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4267,10 +4267,10 @@ type-is@~1.6.17, type-is@~1.6.18:
     media-typer "0.3.0"
     mime-types "~2.1.24"
 
-typescript@^3.2.2:
-  version "3.6.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.6.2.tgz#105b0f1934119dde543ac8eb71af3a91009efe54"
-  integrity sha512-lmQ4L+J6mnu3xweP8+rOrUwzmN+MRAj7TgtJtDaXE5PMyX2kCrklhg3rvOsOIfNeAWMQWO2F1GPc1kMD2vLAfw==
+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 "3.4.9"