diff --git a/pyproject.toml b/pyproject.toml
index 7c8b8ae..35bf0a4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -145,8 +145,8 @@ select = [
     "D210", "D211",
     # emptiness
     "D419",
-
-
+    # no pdb
+    "T100",
 ]
 ignore = [
     "ANN101", "ANN102", "ANN401", "ANN204",
diff --git a/src/numpydantic/interface/hdf5.py b/src/numpydantic/interface/hdf5.py
index e3edac4..20cec0d 100644
--- a/src/numpydantic/interface/hdf5.py
+++ b/src/numpydantic/interface/hdf5.py
@@ -39,7 +39,6 @@ as ``S32`` isoformatted byte strings (timezones optional) like:
     
 """
 
-import pdb
 import sys
 from datetime import datetime
 from pathlib import Path
@@ -322,7 +321,6 @@ class H5Interface(Interface):
         """
         if h5py.h5t.check_string_dtype(array.dtype):
             # check for datetimes
-            pdb.set_trace()
             try:
                 if array[0].dtype.type is np.datetime64:
                     return np.datetime64