diff --git a/src/gam/var.py b/src/gam/var.py
index 106e749f..3d45e9e9 100644
--- a/src/gam/var.py
+++ b/src/gam/var.py
@@ -648,6 +648,7 @@ MACOS_CODENAMES = {
         },
     11: 'Big Sur',
     12: 'Monterey',
+    13: 'Ventura',
     }
 
 _MICROSOFT_FORMATS_LIST = [{