diff --git a/merge_zero3_safetensors.sh b/merge_zero3_safetensors.sh
index bddea24..80bb614 100755
--- a/merge_zero3_safetensors.sh
+++ b/merge_zero3_safetensors.sh
@@ -3,7 +3,7 @@ set -euo pipefail
 
 # ===== 可调参数 =====
 CKPT_ROOT="/home/test/checkpoints/q3-32b-ds4"   # 若实际是 .../checkpoint-62/global_step62，请把 CKPT_ROOT 改成 .../checkpoint-62
-TAG="global_step62"
+TAG="global_step20"
 HOSTS=(tn01 tn02 tn03 tn04 tn05 tn06)
 AGGREGATOR_HOST="tn06"            # 本脚本运行/汇总所在机器
 EXPECTED_SHARDS_PER_HOST=4        # 每机应写出分片数（按你的并行布局）