diff --git a/src/numpydantic/interface/interface.py b/src/numpydantic/interface/interface.py
index 5cb074d..6bb03e6 100644
--- a/src/numpydantic/interface/interface.py
+++ b/src/numpydantic/interface/interface.py
@@ -157,7 +157,6 @@ class Interface(ABC, Generic[T]):
             msg += "\n".join([f"  - {i}" for i in matches])
             raise ValueError(msg)
         elif len(matches) == 0:
-            pdb.set_trace()
             raise ValueError(f"No matching interfaces found for input {array}")
         else:
             return matches[0]
diff --git a/tests/conftest.py b/tests/conftest.py
index b22d54a..efba5ad 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,7 +1,13 @@
 import pdb
+import sys
 
 import pytest
-from typing import Any, Tuple, Union, Type, TypeAlias
+from typing import Any, Tuple, Union, Type
+
+if sys.version_info.minor < 11:
+    from typing import TypeAlias
+else:
+    from typing_extensions import TypeAlias
 from pydantic import BaseModel, computed_field, ConfigDict
 from numpydantic import NDArray, Shape
 from numpydantic.ndarray import NDArrayMeta