diff --git a/apps/core/.webpack/runtime-config.ts b/apps/core/.webpack/runtime-config.ts
index 3351f72f03..66be0ae71d 100644
--- a/apps/core/.webpack/runtime-config.ts
+++ b/apps/core/.webpack/runtime-config.ts
@@ -48,7 +48,7 @@ export function getRuntimeConfig(buildFlags: BuildFlags): RuntimeConfig {
     get beta() {
       return {
         ...this.stable,
-        serverUrlPrefix: 'https://ambassador.affine.pro',
+        serverUrlPrefix: 'https://insider.affine.pro',
       };
     },
     get internal() {