diff --git a/lib/spack/spack/operating_systems/mac_os.py b/lib/spack/spack/operating_systems/mac_os.py
index a988a18205f..da92c4d6775 100644
--- a/lib/spack/spack/operating_systems/mac_os.py
+++ b/lib/spack/spack/operating_systems/mac_os.py
@@ -141,6 +141,7 @@ def __init__(self):
             "10.16": "bigsur",
             "11": "bigsur",
             "12": "monterey",
+            "13": "ventura",
         }
 
         version = macos_version()