diff --git a/services/log_service.py b/services/log_service.py
index 09bf231..c44e6c1 100644
--- a/services/log_service.py
+++ b/services/log_service.py
@@ -89,7 +89,8 @@ class LogService:
                 runtime_handler = logging.handlers.RotatingFileHandler(
                     self.log_dir / "runtime" / runtime_log_file,
                     maxBytes=self._parse_size(self.config['logging'].get('max_file_size', '10MB')),
-                    backupCount=self.config['logging'].get('max_log_files', 3)
+                    backupCount=self.config['logging'].get('max_log_files', 3),
+                    encoding='utf-8'
                 )
                 runtime_handler.setLevel(getattr(logging, self.config['logging']['level'], logging.INFO))
                 runtime_handler.setFormatter(file_formatter)
@@ -101,7 +102,8 @@ class LogService:
                     debug_handler = logging.handlers.RotatingFileHandler(
                         self.log_dir / "debug" / debug_log_file,
                         maxBytes=self._parse_size(self.config['logging'].get('max_file_size', '10MB')),
-                        backupCount=self.config['logging'].get('max_log_files', 3)
+                        backupCount=self.config['logging'].get('max_log_files', 3),
+                        encoding='utf-8'
                     )
                     debug_handler.setLevel(logging.DEBUG)
                     debug_handler.setFormatter(file_formatter)