diff --git a/package.json b/package.json
index d2c0ec236e3..d55272e9772 100644
--- a/package.json
+++ b/package.json
@@ -74,6 +74,7 @@
     "@types/sinon": "^1.16.36",
     "@types/webpack": "^4.4.10",
     "@types/windows-foreground-love": "^0.3.0",
+    "@types/windows-mutex": "^0.4.0",
     "@types/windows-process-tree": "^0.2.0",
     "@types/winreg": "^1.2.30",
     "@types/yauzl": "^2.9.1",
diff --git a/src/typings/windows-mutex.d.ts b/src/typings/windows-mutex.d.ts
deleted file mode 100644
index 07c5908def2..00000000000
--- a/src/typings/windows-mutex.d.ts
+++ /dev/null
@@ -1,14 +0,0 @@
-/*---------------------------------------------------------------------------------------------
- *  Copyright (c) Microsoft Corporation. All rights reserved.
- *  Licensed under the MIT License. See License.txt in the project root for license information.
- *--------------------------------------------------------------------------------------------*/
-
-declare module 'windows-mutex' {
-	export class Mutex {
-		constructor(name: string);
-		isActive(): boolean;
-		release(): void;
-	}
-
-	export function isActive(name: string): boolean;
-}
diff --git a/yarn.lock b/yarn.lock
index 6de938a1481..8c2e276bbec 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -214,6 +214,11 @@
   resolved "https://registry.yarnpkg.com/@types/windows-foreground-love/-/windows-foreground-love-0.3.0.tgz#26bc230b2568aa7ab7c56d35bb5653c0a6965a42"
   integrity sha512-tFUVA/fiofNqOh6lZlymvQiQYPY+cZXZPR9mn9wN6/KS8uwx0zgH4Ij/jmFyRYr+x+DGZWEIeknS2BMi7FZJAQ==
 
+"@types/windows-mutex@^0.4.0":
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/@types/windows-mutex/-/windows-mutex-0.4.0.tgz#d27070418aa26047c6c860c704952ff26aeb961b"
+  integrity sha512-zUMH4nutIURLARU6f10Ls6XcZWhUkwmzVEALs26dt1ZbaLv/qxsGdYiePUbwhQmrQUp3EPZ1HxopWpzzC8ot5A==
+
 "@types/windows-process-tree@^0.2.0":
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/@types/windows-process-tree/-/windows-process-tree-0.2.0.tgz#2fa205c838a8ef0a07697cd747c954653978d22c"