diff --git a/nova/objects/service.py b/nova/objects/service.py
index 215d21b96dbb..e23156c958c9 100644
--- a/nova/objects/service.py
+++ b/nova/objects/service.py
@@ -262,6 +262,7 @@ SERVICE_VERSION_ALIASES = {
     'Zed': 64,
     'Antelope': 66,
     'Bobcat': 66,
+    'Caracal': 66,
 }