diff --git a/src/main/java/itn/let/mjo/msgdata/service/impl/MjonMsgDataServiceImpl.java b/src/main/java/itn/let/mjo/msgdata/service/impl/MjonMsgDataServiceImpl.java
index a3e264c3..75e5f963 100644
--- a/src/main/java/itn/let/mjo/msgdata/service/impl/MjonMsgDataServiceImpl.java
+++ b/src/main/java/itn/let/mjo/msgdata/service/impl/MjonMsgDataServiceImpl.java
@@ -4180,7 +4180,7 @@ public class MjonMsgDataServiceImpl extends EgovAbstractServiceImpl implements M
 		long totalStartTime = System.currentTimeMillis();
 
 		int totalSize = mjonMsgSendVOList.size(); // 총 데이터 개수
-		int batchSize = 30000; // Batch 크기 설정 (고정값)
+		int batchSize = 16667; // Batch 크기 설정 (고정값)
 
 		System.out.println("총 데이터 개수 :: " + totalSize);
 		System.out.println("설정된 Batch 크기 :: " + batchSize);