diff --git a/config/versions.json b/config/versions.json
index 23b4506..b504d6f 100644
--- a/config/versions.json
+++ b/config/versions.json
@@ -1,6 +1,6 @@
 {
     "$schema": "http://github.com/ACCESS-NRI/schema/blob/main/au.org.access-nri/model/deployment/config/versions/2-0-0.json",
-    "spack": "0.21",
+    "spack": "0.22",
     "spack-packages": "2024.07.03",
     "spack-config": "2024.07.02"
 }