diff --git a/spack.yaml b/spack.yaml
index 79ceed8..174df30 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -8,23 +8,43 @@ spack:
     - access-om2@git.2024.03.0
   packages:
     cice5:
-      require: '@git.2023.10.19'
+      require:
+      - '@git.2023.10.19'
     mom5:
-      require: '@git.2023.11.09'
+      require:
+      - '@git.development'
     libaccessom2:
-      require: '@git.2023.10.26'
+      require:
+      - '@git.2023.10.26'
     oasis3-mct:
-      require: '@git.2023.11.09'
+      require:
+      - '@git.2023.11.09'
     netcdf-c:
-      require: '@4.7.4'
+      require:
+      - '@4.7.4'
     netcdf-fortran:
-      require: '@4.5.2'
+      require:
+      - '@4.5.2'
     parallelio:
-      require: '@2.5.2'
+      require:
+      - '@2.5.2'
     openmpi:
-      require: '@4.0.2'
+      require:
+      - '@4.0.2'
+    access-fms:
+      require:
+      - '@development'
+    access-generic-tracers:
+      require:
+      - '@development'
+    access-mocsy:
+      require:
+      - '@mom5'
+    # Specifications that apply to all packages
     all:
-      compiler: [intel@19.0.5.281]
+      require:
+        - '%intel@19.0.5.281'
+        - 'target=x86_64'
   view: true
   concretizer:
     unify: true