diff --git a/app-config.yaml b/app-config.yaml
index e5df1de5d5..a0233991f8 100644
--- a/app-config.yaml
+++ b/app-config.yaml
@@ -5,7 +5,6 @@ app:
 backend:
   baseUrl: http://localhost:7000
   listen:
-    host: 0.0.0.0
     port: 7000
   cors:
     origin: http://localhost:3000
diff --git a/packages/backend-common/src/service/lib/ServiceBuilderImpl.ts b/packages/backend-common/src/service/lib/ServiceBuilderImpl.ts
index 4a51fb195c..cd8e445dd8 100644
--- a/packages/backend-common/src/service/lib/ServiceBuilderImpl.ts
+++ b/packages/backend-common/src/service/lib/ServiceBuilderImpl.ts
@@ -33,7 +33,8 @@ import { ServiceBuilder } from '../types';
 import { readBaseOptions, readCorsOptions } from './config';
 
 const DEFAULT_PORT = 7000;
-const DEFAULT_HOST = 'localhost';
+// '' is express default, which listens to all interfaces
+const DEFAULT_HOST = '';
 
 export class ServiceBuilderImpl implements ServiceBuilder {
   private port: number | undefined;
diff --git a/packages/create-app/templates/default-app/app-config.yaml b/packages/create-app/templates/default-app/app-config.yaml
index addd74ab67..9fafbf4d76 100644
--- a/packages/create-app/templates/default-app/app-config.yaml
+++ b/packages/create-app/templates/default-app/app-config.yaml
@@ -8,7 +8,6 @@ organization:
 backend:
   baseUrl: http://localhost:7000
   listen:
-    host: 0.0.0.0
     port: 7000
   cors:
     origin: http://localhost:3000