diff --git a/senlin/common/wsgi.py b/senlin/common/wsgi.py
index 91dc944ca..d51826573 100644
--- a/senlin/common/wsgi.py
+++ b/senlin/common/wsgi.py
@@ -352,7 +352,7 @@ class Server(object):
             self.stale_children.remove(pid)
             LOG.info(_LI('Removed stale child %s'), pid)
         else:
-            LOG.warn(_LW('Unrecognised child %s'), pid)
+            LOG.warning(_LW('Unrecognized child %s'), pid)
 
     def _verify_and_respawn_children(self, pid, status):
         if len(self.stale_children) == 0:
diff --git a/senlin/engine/registry.py b/senlin/engine/registry.py
index baf41dc32..07daae06c 100644
--- a/senlin/engine/registry.py
+++ b/senlin/engine/registry.py
@@ -83,7 +83,7 @@ class Registry(object):
         registry = self._registry
         if info is None:
             # delete this entry.
-            LOG.warn(_LW('Removing %(item)s from registry'), {'item': name})
+            LOG.warning(_LW('Removing %(item)s from registry'), {'item': name})
             registry.pop(name, None)
             return
 
@@ -95,7 +95,8 @@ class Registry(object):
                 'old': str(registry[name].plugin),
                 'new': str(info.plugin)
             }
-            LOG.warn(_LW('Changing %(name)s from %(old)s to %(new)s'), details)
+            LOG.warning(_LW('Changing %(name)s from %(old)s to %(new)s'),
+                        details)
         else:
             LOG.info(_LI('Registering %(name)s -> %(value)s'), {
                 'name': name, 'value': str(info.plugin)})