diff --git a/apps/server/src/index.ts b/apps/server/src/index.ts
index 7859289..dc4676b 100644
--- a/apps/server/src/index.ts
+++ b/apps/server/src/index.ts
@@ -1,6 +1,7 @@
 import { Server } from "socket.io";
 import { createServer } from "http";
 import { GameManager } from "./domains/game/GameManager";
+import { RoomManager } from "./domains/room/RoomManager";
 import { SocketManager } from "./network/SocketManager";
 
 // サーバー待受ポート
@@ -18,7 +19,8 @@
 
 // ゲーム管理・通信管理クラス初期化
 const gameManager = new GameManager();
-const socketManager = new SocketManager(io, gameManager);
+const roomManager = new RoomManager();
+const socketManager = new SocketManager(io, gameManager, roomManager);
 
 socketManager.initialize();
 
diff --git a/apps/server/src/network/SocketManager.ts b/apps/server/src/network/SocketManager.ts
index 5a4850a..8ad1602 100644
--- a/apps/server/src/network/SocketManager.ts
+++ b/apps/server/src/network/SocketManager.ts
@@ -10,10 +10,10 @@
   private gameManager: GameManager;
   private roomManager: RoomManager;
 
-  constructor(io: Server, gameManager: GameManager) {
+  constructor(io: Server, gameManager: GameManager, roomManager: RoomManager) {
     this.io = io;
     this.gameManager = gameManager;
-    this.roomManager = new RoomManager();
+    this.roomManager = roomManager;
   }
 
   public initialize() {