diff --git a/config/versions.json b/config/versions.json
index 8f710a9f..7373f80a 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": "2025.03.002"
+    "spack-packages": "ed25bd497a716cc4edaa867cc14e06dbc3777149"
 }
diff --git a/spack.yaml b/spack.yaml
index b790420c..8fd2f1a9 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -13,8 +13,7 @@ spack:
   packages:
     mom5:
       require:
-        - '@git.dev-2025.03.001=access-esm1.6'
-        - '+access-gtracers'
+        - '@git.2025.05.000=access-esm1.6'
     cice4:
       require:
         - '@git.access-esm1.6-2025.04.000=access-esm1.5'
@@ -41,13 +40,13 @@ spack:
         - '@1.10.11'
     access-fms:
       require:
-        - '@git.mom5-2025.04.001'
+        - '@git.mom5-2025.05.000=mom5'
     access-generic-tracers:
       require:
-        - '@git.dev-2025.04.001'
+        - '@git.dev-2025.05.001=development'
     access-mocsy:
       require:
-        - '@git.2017.12.0'
+        - '@git.2017.12.0=mom5'
 
     # Preferences for all packages
     all:
@@ -69,7 +68,7 @@ spack:
           access-esm1p6: '{name}/dev_2025.04.000'
           cice4: '{name}/access-esm1.6-2025.04.000-{hash:7}'
           um7: '{name}/access-esm1.6-2025.04.000-{hash:7}'
-          mom5: '{name}/dev-2025.03.001-{hash:7}'
+          mom5: '{name}/2025.05.000-{hash:7}'
   config:
     install_tree:
       root: $spack/../restricted/ukmo/release