diff --git a/backUpIncremental.sh b/backUpIncremental.sh
index 30d69a5..a60dd57 100755
--- a/backUpIncremental.sh
+++ b/backUpIncremental.sh
@@ -32,7 +32,7 @@ cd $backUpPath
 #    mysqldump -u $MYSQL_USER -p$MYSQL_PASSWORD -h $MYSQL_HOST $MYSQL_DATABASE > "$BACKUP_DIR/full_backup.sql"
 #else
     echo "docker exec maria /usr/bin/mysqlbinlog -u${userName} -p${password} -h${host} --start-position=0 --stop-position=${CURRENT_POSITION} --result-file='${backUpPath}/$dbName-${currentTime}.sql' ${LAST_BINLOG}"
-    docker exec maria /usr/bin/mysqlbinlog -u${userName} -p${password} -h${host} --start-position=0 --stop-position=${CURRENT_POSITION} --result-file="${backUpPath}/${dbName}-${currentTime}.sql" ${LAST_BINLOG}
+    docker exec maria /usr/bin/mysqlbinlog -u${userName} -p${password} -h${host} --start-position=${LAST_BINLOG} --stop-position=${CURRENT_POSITION} --result-file="${backUpPath}/${dbName}-${currentTime}.sql" ${LAST_BINLOG}
 #fi
 # 更新上次备份的binlog文件名和位置
 echo "$CURRENT_BINLOG $CURRENT_POSITION" > "last_backup.txt"