diff --git a/ignite/contrib/engines/common.py b/ignite/contrib/engines/common.py
index acff852e8c1..9cb9a1915c4 100644
--- a/ignite/contrib/engines/common.py
+++ b/ignite/contrib/engines/common.py
@@ -167,9 +167,7 @@ def _setup_common_training_handlers(
 
     if lr_scheduler is not None:
         if isinstance(lr_scheduler, PyTorchLRScheduler):
-            trainer.add_event_handler(
-                Events.ITERATION_COMPLETED, lambda engine: cast(PyTorchLRScheduler, lr_scheduler).step()
-            )
+            trainer.add_event_handler(Events.ITERATION_COMPLETED, lambda engine: lr_scheduler.step())
         else:
             trainer.add_event_handler(Events.ITERATION_STARTED, lr_scheduler)