diff --git a/demo/server.py b/demo/server.py
index c4e00fd..15da90b 100644
--- a/demo/server.py
+++ b/demo/server.py
@@ -202,7 +202,8 @@ def create_interface():
 
         if settings_file is not None:
             logger.info(f"Loading settings from \"{settings_file}\"")
-            file_contents = open(settings_file, 'r', encoding='utf-8').read()
+            with open(settings_file, 'r', encoding='utf-8') as f:
+                file_contents = f.read()
             new_settings = json.loads(file_contents) if settings_file.suffix == "json" else yaml.safe_load(file_contents)
             shared.settings.update(new_settings)