diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 72daff7b66b..b5d17022a3a 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -71,6 +71,8 @@ jobs:
     secrets: inherit
     uses: rapidsai/shared-workflows/.github/workflows/wheels-build.yaml@branch-24.10
     with:
+      # build for every combination of arch and CUDA version, but only for the latest Python
+      matrix_filter: group_by([.ARCH, (.CUDA_VER|split(".")|map(tonumber)|.[0])]) | map(max_by(.PY_VER|split(".")|map(tonumber)))
       build_type: ${{ inputs.build_type || 'branch' }}
       branch: ${{ inputs.branch }}
       sha: ${{ inputs.sha }}
diff --git a/.github/workflows/pr.yaml b/.github/workflows/pr.yaml
index 0d79568f589..8730804e8b6 100644
--- a/.github/workflows/pr.yaml
+++ b/.github/workflows/pr.yaml
@@ -197,6 +197,7 @@ jobs:
     secrets: inherit
     uses: rapidsai/shared-workflows/.github/workflows/wheels-build.yaml@branch-24.10
     with:
+      # build for every combination of arch and CUDA version, but only for the latest Python
       matrix_filter: group_by([.ARCH, (.CUDA_VER|split(".")|map(tonumber)|.[0])]) | map(max_by(.PY_VER|split(".")|map(tonumber)))
       build_type: pull-request
       script: "ci/build_wheel_libcudf.sh"