diff --git a/.zuul.yaml b/.zuul.yaml
index 461325d..2c16442 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -3,7 +3,7 @@
       - check-requirements
       - lib-forward-testing-python3
       - openstack-lower-constraints-jobs
-      - openstack-python3-train-jobs
+      - openstack-python3-victoria-jobs
       - periodic-stable-jobs
       - publish-openstack-docs-pti
       - release-notes-jobs-python3
diff --git a/debtcollector/updating.py b/debtcollector/updating.py
index 7ad3e20..af071bf 100644
--- a/debtcollector/updating.py
+++ b/debtcollector/updating.py
@@ -14,19 +14,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import six
 import wrapt
-if six.PY3:
-    import inspect
-    Parameter = inspect.Parameter
-    Signature = inspect.Signature
-    get_signature = inspect.signature
-else:
-    # Provide an equivalent but use funcsigs instead...
-    import funcsigs
-    Parameter = funcsigs.Parameter
-    Signature = funcsigs.Signature
-    get_signature = funcsigs.signature
+
+from inspect import signature
 
 from debtcollector import _utils
 
@@ -48,8 +38,8 @@ def updated_kwarg_default_value(name, old_value, new_value, message=None,
         prefix, postfix=postfix, message=message, version=version)
 
     def decorator(f):
-        sig = get_signature(f)
-        varnames = list(six.iterkeys(sig.parameters))
+        sig = signature(f)
+        varnames = list(sig.parameters.keys())
 
         @wrapt.decorator
         def wrapper(wrapped, instance, args, kwargs):