diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index cae8385..5714de8 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -37,4 +37,4 @@ jobs:
     - name: Test with pytest
       run: |
         pip install pytest pytest-cov
-        pytest --cov tianshou
+        pytest test --cov tianshou
diff --git a/test/test_ppo.py b/test/test_ppo.py
index a3e0f62..c5816b2 100644
--- a/test/test_ppo.py
+++ b/test/test_ppo.py
@@ -61,7 +61,7 @@ class Critic(nn.Module):
 def get_args():
     parser = argparse.ArgumentParser()
     parser.add_argument('--task', type=str, default='CartPole-v0')
-    parser.add_argument('--seed', type=int, default=1626)
+    parser.add_argument('--seed', type=int, default=0)
     parser.add_argument('--buffer-size', type=int, default=20000)
     parser.add_argument('--lr', type=float, default=3e-3)
     parser.add_argument('--gamma', type=float, default=0.99)