diff --git a/colossalai/booster/plugin/moe_hybrid_parallel_plugin.py b/colossalai/booster/plugin/moe_hybrid_parallel_plugin.py
index 7f6608086..4c3aece9d 100644
--- a/colossalai/booster/plugin/moe_hybrid_parallel_plugin.py
+++ b/colossalai/booster/plugin/moe_hybrid_parallel_plugin.py
@@ -154,7 +154,7 @@ class MoeHybridParallelPlugin(HybridParallelPlugin):
         zero_bucket_size_in_m: int = 12,
         cpu_offload: bool = False,
         communication_dtype: Optional[torch.dtype] = None,
-        overlap_communication: bool = True,
+        overlap_communication: bool = False,
         custom_policy: Policy = None,
         pp_style: str = "1f1b",
         num_model_chunks: int = 1,
diff --git a/colossalai/shardformer/policies/deepseek.py b/colossalai/shardformer/policies/deepseek.py
index d729a4ecc..605f69c4a 100644
--- a/colossalai/shardformer/policies/deepseek.py
+++ b/colossalai/shardformer/policies/deepseek.py
@@ -4,6 +4,7 @@ from typing import Callable, Dict, List, Union
 import torch.nn as nn
 from torch import Tensor
 from torch.nn import Module
+from transformers.utils import is_flash_attn_greater_or_equal_2_10
 
 from colossalai.shardformer.layer import FusedRMSNorm, Linear1D_Col
 from colossalai.shardformer.layer.embedding import PaddingEmbedding, VocabParallelEmbedding1D
@@ -206,6 +207,7 @@ class DeepseekPolicy(Policy):
                 @staticmethod
                 def from_native_module(original_attn: nn.Module, *args, **kwargs) -> nn.Module:
                     original_attn.__class__ = flash_attn_cls
+                    original_attn._flash_attn_uses_top_left_mask = not is_flash_attn_greater_or_equal_2_10()
                     return original_attn
 
             self.append_or_create_submodule_replacement(
diff --git a/tests/test_shardformer/test_model/test_shard_deepseek.py b/tests/test_shardformer/test_model/test_shard_deepseek.py
index 709963613..187c642da 100644
--- a/tests/test_shardformer/test_model/test_shard_deepseek.py
+++ b/tests/test_shardformer/test_model/test_shard_deepseek.py
@@ -60,6 +60,7 @@ def run_zero_with_original_model(config: Tuple[int, ...]):
         zero_stage=stage,
         enable_sequence_parallelism=sp_size > 1,
         sequence_parallelism_mode="all_to_all" if sp_size > 1 else None,
+        enable_flash_attention=sp_size > 1,
         overlap_communication=False,
         initial_scale=1,
         precision=precision,
@@ -161,7 +162,7 @@ def run_zero_with_original_model(config: Tuple[int, ...]):
         assert_loose_close(parallel_output, torch_output_sum, dtype=dtype)
 
     # use checkpoint to load sharded zero model
-    model_dir = "./test_mixtral"
+    model_dir = "./test_deepseek"
     if rank == world_size - 1:
         os.makedirs(model_dir, exist_ok=True)