diff --git a/config/versions.json b/config/versions.json
index ae98cfb..2823c26 100644
--- a/config/versions.json
+++ b/config/versions.json
@@ -1,5 +1,5 @@
 {
     "$schema": "http://github.com/ACCESS-NRI/schema/blob/main/au.org.access-nri/model/deployment/config/versions/3-0-0.json",
     "spack": "0.22",
-    "spack-packages": "2025.08.003"
+    "spack-packages": "ecc03d83173325cd8255ffe9eaba3ff8904422da"
 }
diff --git a/spack.yaml b/spack.yaml
index ab00b83..917c404 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -25,7 +25,8 @@ spack:
         - 'cxxflags="-march=sapphirerapids -mtune=sapphirerapids -unroll"'
     access-mom6:
       require:
-        - '@2025.07.000'
+        - '@git.078fc7d944c0d2b2b4e4ddf1ce7cacc617f20d0f' #  On cmake-allow-exe
+        - +mom6_solo
         - 'fflags="-march=sapphirerapids -mtune=sapphirerapids -unroll"'
         - 'cflags="-march=sapphirerapids -mtune=sapphirerapids -unroll"'
         - 'cxxflags="-march=sapphirerapids -mtune=sapphirerapids -unroll"'