diff --git a/package.json b/package.json
index 4d98dd6..8d2c796 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
     "@types/debug": "4.1.5",
     "@types/express": "4.17.11",
     "@types/node": "14.14.21",
-    "@types/socket.io": "2.1.12",
+    "@types/socket.io": "2.1.4",
     "debug": "4.3.1",
     "express": "4.17.1",
     "prettier": "2.2.1",
diff --git a/src/index.ts b/src/index.ts
index 233d6be..80be30a 100755
--- a/src/index.ts
+++ b/src/index.ts
@@ -21,7 +21,7 @@ server.listen(port, () => {
 });
 
 const io = socketIO(server, {
-  handlePreflightRequest: function (req: Request, res: Response) {
+  handlePreflightRequest: function (req, res) {
     var headers = {
       "Access-Control-Allow-Headers": "Content-Type, Authorization",
       "Access-Control-Allow-Origin": "*",
diff --git a/yarn.lock b/yarn.lock
index 8b72d08..8931265 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -22,13 +22,6 @@
   resolved "https://registry.yarnpkg.com/@types/debug/-/debug-4.1.5.tgz#b14efa8852b7768d898906613c23f688713e02cd"
   integrity sha512-Q1y515GcOdTHgagaVFhHnIFQ38ygs/kmxdNpvpou+raI9UO3YZcHDngBSYKQklcKlvA7iuQlmIKbzvmxcOE9CQ==
 
-"@types/engine.io@*":
-  version "3.1.5"
-  resolved "https://registry.yarnpkg.com/@types/engine.io/-/engine.io-3.1.5.tgz#ed280bec61d6226c0bfcb03f2820c4e65391dac2"
-  integrity sha512-DLVpLEGTEZGBXOYoYoagHSxXkDHONc0fZouF2ayw7Q18aRu1Afwci+1CFKvPpouCUOVWP+dmCaAWpQjswe7kpg==
-  dependencies:
-    "@types/node" "*"
-
 "@types/express-serve-static-core@*", "@types/express-serve-static-core@^4.17.18":
   version "4.17.18"
   resolved "https://registry.yarnpkg.com/@types/express-serve-static-core/-/express-serve-static-core-4.17.18.tgz#8371e260f40e0e1ca0c116a9afcd9426fa094c40"
@@ -81,22 +74,13 @@
     "@types/express-serve-static-core" "*"
     "@types/mime" "*"
 
-"@types/socket.io-parser@*":
-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/@types/socket.io-parser/-/socket.io-parser-2.2.1.tgz#dc94aed303839487f4975249a32a548109ea3647"
-  integrity sha512-+JNb+7N7tSINyXPxAJb62+NcpC1x/fPn7z818W4xeNCdPTp6VsO/X8fCsg6+ug4a56m1v9sEiTIIUKVupcHOFQ==
+"@types/socket.io@2.1.4":
+  version "2.1.4"
+  resolved "https://registry.yarnpkg.com/@types/socket.io/-/socket.io-2.1.4.tgz#674e7bc193c5ccdadd4433f79f3660d31759e9ac"
+  integrity sha512-cI98INy7tYnweTsUlp8ocveVdAxENUThO0JsLSCs51cjOP2yV5Mqo5QszMDPckyRRA+PO6+wBgKvGvHUCc23TQ==
   dependencies:
     "@types/node" "*"
 
-"@types/socket.io@2.1.12":
-  version "2.1.12"
-  resolved "https://registry.yarnpkg.com/@types/socket.io/-/socket.io-2.1.12.tgz#91187f826a5dd2ed1113e935815bbaf9627e5cb0"
-  integrity sha512-oStc5VFkpb0AsjOxQUj9ztX5Iziatyla/rjZTYbFGoVrrKwd+JU2mtxk7iSl5RGYx9WunLo6UXW1fBzQok/ZyA==
-  dependencies:
-    "@types/engine.io" "*"
-    "@types/node" "*"
-    "@types/socket.io-parser" "*"
-
 accepts@~1.3.4, accepts@~1.3.7:
   version "1.3.7"
   resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.7.tgz#531bc726517a3b2b41f850021c6cc15eaab507cd"