diff --git a/ecs/jskult-batch-daily/src/batch/ultmarc/ultmarc_process.py b/ecs/jskult-batch-daily/src/batch/ultmarc/ultmarc_process.py
index 4180ee05..f1d5eab9 100644
--- a/ecs/jskult-batch-daily/src/batch/ultmarc/ultmarc_process.py
+++ b/ecs/jskult-batch-daily/src/batch/ultmarc/ultmarc_process.py
@@ -76,7 +76,7 @@ def _convert_character_hex(dat_file_path: str, config_file_path: str) -> str:
         # sedコマンドで置き換え
         # MacOSで実行する場合のコマンド
         # subprocess.call([f"export LANG=C && sed -i '' -e \"s/{src_hex}/{dst_hex}/g\" {dat_file_path}"], shell=True)
-        subprocess.call([f"sed -e \"s/{src_hex}/{dst_hex}/g\" {dat_file_path}"], shell=True)
+        subprocess.call([f"sed -i -e \"s/{src_hex}/{dst_hex}/g\" {dat_file_path}"], shell=True)
     logger.debug('文字コード変換終了')
 
     return dat_file_path