diff --git a/app.py b/app.py
index c045901..395a036 100644
--- a/app.py
+++ b/app.py
@@ -1312,7 +1312,7 @@ if __name__ == '__main__':
     
     # Run the app
     debug_mode = os.environ.get('FLASK_DEBUG', 'true').lower() == 'true'
-    port = int(os.environ.get('PORT', 5000))
+    port = int(os.environ.get('PORT', 9000))
     
     logger.info(f"Starting QBO Excel Sync Web App on port {port} (debug={debug_mode})")
     app.run(host='0.0.0.0', port=port, debug=debug_mode)
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