1 files changed, 7 insertions, 0 deletions
diff --git a/src/cryptography/utils.py b/src/cryptography/utils.py
index 3407bfe6..4c006278 100644
--- a/src/cryptography/utils.py
+++ b/src/cryptography/utils.py
@@ -118,6 +118,13 @@ class _ModuleWithDeprecations(object):
     def __setattr__(self, attr, value):
         setattr(self._module, attr, value)
 
+    def __delattr__(self, attr):
+        obj = getattr(self._module, attr)
+        if isinstance(obj, _DeprecatedValue):
+            warnings.warn(obj.message, obj.warning_class, stacklevel=2)
+
+        delattr(self._module, attr)
+
     def __dir__(self):
         return ["_module"] + dir(self._module)