diff --git a/spack.yaml b/spack.yaml
index 6033a72e..29d98f78 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.1c211deed4819f0dfb667a704ea5ce7d514526a7=access-esm1.6'
     cable:
       require:
         - '@2025.11.000'