diff --git a/nova/cells/manager.py b/nova/cells/manager.py
index 6edb96a13a..638e851805 100644
--- a/nova/cells/manager.py
+++ b/nova/cells/manager.py
@@ -65,7 +65,7 @@ class CellsManager(manager.Manager):
 
     Scheduling requests get passed to the scheduler class.
     """
-    RPC_API_VERSION = '1.18'
+    RPC_API_VERSION = '1.19'
 
     def __init__(self, *args, **kwargs):
         # Mostly for tests.