diff --git a/.github/workflows/preview.yml b/.github/workflows/preview.yml
index b66e76c7..1e71c49b 100644
--- a/.github/workflows/preview.yml
+++ b/.github/workflows/preview.yml
@@ -64,10 +64,13 @@ jobs:
                   config = yaml.safe_load(file)
                   logging.info('YAML file loaded successfully.')
 
-              # Modify the developer mode setting
+              # Modify the developer mode and CDN settings
               config['developer']['enable'] = True
               logging.info('Developer mode set to True.')
 
+              config['cdn']['enable'] = False
+              logging.info('CDN set to False.')
+
               # Save the modified YAML file
               with open('hexo-site/_config.redefine.yml', 'w') as file:
                   yaml.safe_dump(config, file, default_flow_style=False, sort_keys=False)