diff --git a/frontend/src/components/OnlyOfficeEditor.tsx b/frontend/src/components/OnlyOfficeEditor.tsx
index b71e3d0..810e956 100644
--- a/frontend/src/components/OnlyOfficeEditor.tsx
+++ b/frontend/src/components/OnlyOfficeEditor.tsx
@@ -47,7 +47,7 @@ export default function OnlyOfficeEditor({ file, type, onClose }: OnlyOfficeEdit
     
     // Use the internal backend URL for OnlyOffice server-to-server communication 
     // to avoid Hairpin NAT/DNS issues from inside the Docker network.
-    const INTERNAL_BACKEND_URL = 'http://192.168.50.81:5827';
+    const INTERNAL_BACKEND_URL = 'http://192.168.50.57:5827';
     
     // URL that OnlyOffice will use to download the file
     const fileUrl = `${INTERNAL_BACKEND_URL}/api/files/download/?path=${encodeURIComponent(file.path)}&token=${downloadToken}`;