diff --git a/spack.yaml b/spack.yaml
index a04cbc5..bf49104 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -21,10 +21,13 @@ spack:
         - '+access-gtracers'
     cice4:
       require:
-        - '@git.2024.05.21=access-esm1.5'
-    um7:
+        - '@git.update_DaveBi=access-esm1.5'
+    
+    # branch = 22-land-parameters-in-code
+    um7: 
       require:
-        - '@git.dev-access-esm1.6=access-esm1.6'
+        #- '@git.dev-access-esm1.6=access-esm1.6'
+        - '@git.4c20c873cc26b447a2df4520d81e1b67dcfcb8a8=access-esm1.6'
     # Lower-level ACCESS-NRI dependencies
     gcom4:
       require:
@@ -50,7 +53,7 @@ spack:
         - '@git.dev_2024.12.0'
     access-generic-tracers:
       require:
-        - '@git.dev_2024.12.0'
+        - '@git.dev_2024.12.2'
     access-mocsy:
       require:
         - '@git.2017.12.0'
@@ -73,8 +76,8 @@ spack:
           - mom5
         projections:
           access-esm1p6: '{name}/dev_2024.12.0'
-          cice4: '{name}/2024.05.21-{hash:7}'
-          um7: '{name}/dev-access-esm1.6-{hash:7}'
+          cice4: '{name}/update_DaveBi-{hash:7}'
+          um7: '{name}/4c20c873cc26b447a2df4520d81e1b67dcfcb8a8-{hash:7}'
           mom5: '{name}/dev_2024.08.14-{hash:7}'
   config:
     install_tree: