diff --git a/app.py b/app.py
index 6bb4485..3cc83be 100644
--- a/app.py
+++ b/app.py
@@ -170,6 +170,6 @@ def create_app() -> web.Application:
     return app
 
 if __name__ == "__main__":
-    host = os.getenv("HOST", "127.0.0.1")
+    host = os.getenv("HOST", "0.0.0.0")
     port = int(os.getenv("PORT", "9000"))
     web.run_app(create_app(), host=host, port=port)