diff --git a/examples/aishell/branchformer/run.sh b/examples/aishell/branchformer/run.sh
index 4e51288f2..ecdfd24c9 100755
--- a/examples/aishell/branchformer/run.sh
+++ b/examples/aishell/branchformer/run.sh
@@ -78,7 +78,7 @@ if [ ${stage} -le 1 ] && [ ${stop_stage} -ge 1 ]; then
     --config-name "${config}" \
     ++train_data_set_list="${feats_dir}/data/${train_set}/audio_datasets.jsonl" \
     ++cmvn_file="${feats_dir}/data/${train_set}/cmvn.json" \
-    ++dataset_conf.num_workers=$nj
+
 fi
 
 token_list=${feats_dir}/data/${lang}_token_list/$token_type/tokens.txt
diff --git a/examples/aishell/conformer/run.sh b/examples/aishell/conformer/run.sh
index f5d993a28..19aa2db6a 100755
--- a/examples/aishell/conformer/run.sh
+++ b/examples/aishell/conformer/run.sh
@@ -77,7 +77,7 @@ if [ ${stage} -le 1 ] && [ ${stop_stage} -ge 1 ]; then
     --config-name "${config}" \
     ++train_data_set_list="${feats_dir}/data/${train_set}/audio_datasets.jsonl" \
     ++cmvn_file="${feats_dir}/data/${train_set}/cmvn.json" \
-    ++dataset_conf.num_workers=$nj
+
 fi
 
 token_list=${feats_dir}/data/${lang}_token_list/$token_type/tokens.txt
diff --git a/examples/aishell/e_branchformer/run.sh b/examples/aishell/e_branchformer/run.sh
index 5f8fcfbff..e5a8569ff 100755
--- a/examples/aishell/e_branchformer/run.sh
+++ b/examples/aishell/e_branchformer/run.sh
@@ -78,7 +78,7 @@ if [ ${stage} -le 1 ] && [ ${stop_stage} -ge 1 ]; then
     --config-name "${config}" \
     ++train_data_set_list="${feats_dir}/data/${train_set}/audio_datasets.jsonl" \
     ++cmvn_file="${feats_dir}/data/${train_set}/cmvn.json" \
-    ++dataset_conf.num_workers=$nj
+
 fi
 
 token_list=${feats_dir}/data/${lang}_token_list/$token_type/tokens.txt
diff --git a/examples/aishell/paraformer/run.sh b/examples/aishell/paraformer/run.sh
index 6200a4af5..3c7feb2a1 100755
--- a/examples/aishell/paraformer/run.sh
+++ b/examples/aishell/paraformer/run.sh
@@ -77,7 +77,6 @@ if [ ${stage} -le 1 ] && [ ${stop_stage} -ge 1 ]; then
     --config-name "${config}" \
     ++train_data_set_list="${feats_dir}/data/${train_set}/audio_datasets.jsonl" \
     ++cmvn_file="${feats_dir}/data/${train_set}/cmvn.json" \
-    ++dataset_conf.num_workers=$nj
 fi
 
 token_list=${feats_dir}/data/${lang}_token_list/$token_type/tokens.txt
diff --git a/examples/aishell/transformer/run.sh b/examples/aishell/transformer/run.sh
index 575abf871..e9c3d6414 100755
--- a/examples/aishell/transformer/run.sh
+++ b/examples/aishell/transformer/run.sh
@@ -78,7 +78,7 @@ if [ ${stage} -le 1 ] && [ ${stop_stage} -ge 1 ]; then
     --config-name "${config}" \
     ++train_data_set_list="${feats_dir}/data/${train_set}/audio_datasets.jsonl" \
     ++cmvn_file="${feats_dir}/data/${train_set}/cmvn.json" \
-    ++dataset_conf.num_workers=$nj
+
 fi
 
 token_list=${feats_dir}/data/${lang}_token_list/$token_type/tokens.txt