diff --git a/tests/test_schedulers.py b/tests/test_schedulers.py
index 9402d7af7..f8a88b1c9 100644
--- a/tests/test_schedulers.py
+++ b/tests/test_schedulers.py
@@ -37,11 +37,13 @@ def test_schedulers(self):
         constant_step = int(self.train_steps * self.constant_lr_ratio)
         remaining_step = self.train_steps - constant_step
         for _ in range(constant_step):
+            self.optimizer.step()
             self.lr_scheduler.step()
         self.assertEqual(
             self.lr_scheduler.get_last_lr()[0], self._lr * self.min_lr_ratio
         )
         for _ in range(remaining_step):
+            self.optimizer.step()
             self.lr_scheduler.step()
         self.assertEqual(
             self.lr_scheduler.get_last_lr()[0], self._lr * self.min_lr_ratio