diff --git a/packages/docusaurus/src/commands/start.ts b/packages/docusaurus/src/commands/start.ts
index 849ee610bf4f..3dab36e0b6f4 100644
--- a/packages/docusaurus/src/commands/start.ts
+++ b/packages/docusaurus/src/commands/start.ts
@@ -188,6 +188,10 @@ export async function start(
         warnings: false,
         errors: true,
       },
+      webSocketURL: {
+        hostname: '0.0.0.0',
+        port: 0,
+      },
     },
     headers: {
       'access-control-allow-origin': '*',