diff --git a/jd4/config.py b/jd4/config.py
index c9464d6..214876a 100644
--- a/jd4/config.py
+++ b/jd4/config.py
@@ -13,7 +13,7 @@
 
 def _load_config():
     try:
-        with open(_CONFIG_FILE, 'r', encoding='utf-8') as file:
+        with open(_CONFIG_FILE, 'rb') as file:
             return yaml.load(file, Loader=yaml.RoundTripLoader)
     except FileNotFoundError:
         logger.error('Config file %s not found.', _CONFIG_FILE)
@@ -29,7 +29,7 @@ def _load_config():
 
 async def save_config():
     def do_save_config():
-        with open(_CONFIG_FILE, 'w') as file:
+        with open(_CONFIG_FILE, 'wb') as file:
             yaml.dump(config, file, Dumper=yaml.RoundTripDumper)
 
     await get_event_loop().run_in_executor(None, do_save_config)