diff --git a/airflow-core/src/airflow/utils/serve_logs/log_server.py b/airflow-core/src/airflow/utils/serve_logs/log_server.py
index 16acd64c538fa..49f4df1ce5a5f 100644
--- a/airflow-core/src/airflow/utils/serve_logs/log_server.py
+++ b/airflow-core/src/airflow/utils/serve_logs/log_server.py
@@ -20,6 +20,7 @@
 
 import logging
 import os
+from functools import cache
 from typing import cast
 
 from fastapi import FastAPI, HTTPException, Request, status
@@ -157,12 +158,7 @@ def create_app():
     return fastapi_app
 
 
-app = None
-
-
-def get_app():
-    """Get or create the FastAPI app instance."""
-    global app
-    if app is None:
-        app = create_app()
-    return app
+@cache
+def get_app() -> FastAPI:
+    """Create a cached FastAPI app instance."""
+    return create_app()