diff --git a/config/versions.json b/config/versions.json
index 194eb11..ed47a90 100644
--- a/config/versions.json
+++ b/config/versions.json
@@ -1,5 +1,5 @@
 {
     "$schema": "https://github.com/ACCESS-NRI/schema/blob/main/au.org.access-nri/model/deployment/config/versions/3-0-0.json",
     "spack": "0.22",
-    "spack-packages": "2025.03.006"
+    "spack-packages": "dev-2025.04.004"
 }