diff --git a/colossalai/zero/sharded_optim/sharded_adam.py b/colossalai/zero/sharded_optim/sharded_optim_v2.py
similarity index 99%
rename from colossalai/zero/sharded_optim/sharded_adam.py
rename to colossalai/zero/sharded_optim/sharded_optim_v2.py
index 52b0bf5f7..dc8b48db8 100644
--- a/colossalai/zero/sharded_optim/sharded_adam.py
+++ b/colossalai/zero/sharded_optim/sharded_optim_v2.py
@@ -22,7 +22,7 @@ class OptimState(Enum):
     UNSCALED = 2
 
 
-class ShardedAdam(ColossalaiOptimizer):
+class ShardedOptimizerV2(ColossalaiOptimizer):
 
     def __init__(self,
                  adam_optim: Optimizer,