diff --git a/serialized_data_interface/utils.py b/serialized_data_interface/utils.py
index a9fa822..c64a9fb 100644
--- a/serialized_data_interface/utils.py
+++ b/serialized_data_interface/utils.py
@@ -52,7 +52,7 @@ def extractall(self, path=None, members=None, pwd=None):
 def get_schema(schema):
     """Ensures schema is retrieved if necessary, then loads it."""
     if isinstance(schema, str):
-        h = hashlib.md5()
+        h = hashlib.md5() # nosec B324
         h.update(schema.encode("utf-8"))
         p = Path("/tmp") / h.hexdigest()
         if p.exists():