diff --git a/src/index.ts b/src/index.ts
index 0bbc931..8f609d4 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -873,8 +873,8 @@ if (cluster.isPrimary) {
   });
 } else {
   // ── Worker: cada uno tiene su propio McpServer singleton ──
-  // El mutex serializa las requests dentro de este worker (stateless, 1 request a la vez por worker)
-  let workerBusy: Promise<void> = Promise.resolve();
+  // Sin mutex: cada request se atiende concurrentemente dentro del worker.
+  // StreamableHTTPServerTransport es stateless (uno por request), sin estado compartido.
 
   async function handleMcpRequest(req: IncomingMessage, res: ServerResponse): Promise<void> {
     const transport = new StreamableHTTPServerTransport({
@@ -893,16 +893,14 @@ if (cluster.isPrimary) {
       res.writeHead(404).end("Not found");
       return;
     }
-    workerBusy = workerBusy
-      .then(() => handleMcpRequest(req, res))
-      .catch((err) => {
-        console.error(`[docmost-mcp] Worker PID=${process.pid} error:`, err);
-        if (!res.headersSent) {
-          res.writeHead(500, { "Content-Type": "application/json" }).end(
-            JSON.stringify({ jsonrpc: "2.0", error: { code: -32603, message: String(err) }, id: null })
-          );
-        }
-      });
+    handleMcpRequest(req, res).catch((err) => {
+      console.error(`[docmost-mcp] Worker PID=${process.pid} error:`, err);
+      if (!res.headersSent) {
+        res.writeHead(500, { "Content-Type": "application/json" }).end(
+          JSON.stringify({ jsonrpc: "2.0", error: { code: -32603, message: String(err) }, id: null })
+        );
+      }
+    });
   });
 
   httpServer.listen(8080, () => {
diff --git a/src/lib/collaboration.ts b/src/lib/collaboration.ts
index c767127..452e340 100644
--- a/src/lib/collaboration.ts
+++ b/src/lib/collaboration.ts
@@ -67,7 +67,7 @@ export async function updatePageContentRealtime(
     const timer = setTimeout(() => {
       if (provider) provider.destroy();
       reject(new Error("Connection timeout to collaboration server"));
-    }, 25000);
+    }, 120000);
 
     const provider = new HocuspocusProvider({
       url: wsUrl,