diff --git a/spack.yaml b/spack.yaml
index bd793f0..f7d27ba 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -17,7 +17,7 @@ spack:
       - model="vn13p1-am"
       - jules_ref="2026.01.0"
       - um_ref="2026.01.0"
-      - ukca_ref="615a547a060ef80ae6019cf63d409602473e1e68"
+      - ukca_ref="2026.03.0"
 
     # Indirect dependencies
     netcdf-c: