diff --git a/spack.yaml b/spack.yaml
index 6033a72e..01a225b7 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -22,7 +22,7 @@ spack:
         - 'nxglob=360 nyglob=300 blckx=30 blcky=300 mxblcks=1' # grid size and block size
     um7:
       require:
-        - '@git.2025.12.000=access-esm1.6'
+        - '@git.fa379d58a281e05830b9a26bc1407f630cc3db4d=access-esm1.6'
     cable:
       require:
         - '@2025.11.000'
@@ -75,6 +75,19 @@ spack:
   view: true
   concretizer:
     unify: true
+  modules:
+    default:
+      tcl:
+        include:
+          - access-esm1p6
+          - cice5
+          - um7
+          - mom5
+        projections:
+          access-esm1p6: '{name}/2025.12.000'
+          cice5: '{name}/access-esm1.6-2025.11.001-{hash:7}'
+          um7: '{name}/fa379d58a281e05830b9a26bc1407f630cc3db4d-{hash:7}'
+          mom5: '{name}/2025.05.000-{hash:7}'
   config:
     install_tree:
       root: $spack/../restricted/ukmo/release