diff --git a/.github/scripts/build-wheel.sh b/.github/scripts/build-wheel.sh
index d3944a6fa..55cf81c20 100755
--- a/.github/scripts/build-wheel.sh
+++ b/.github/scripts/build-wheel.sh
@@ -21,7 +21,7 @@ require_cmd() {
 PYTHON3="${PYTHON3:-$(command -v python3 || true)}"
 [[ -x "${PYTHON3:-}" ]] || die "python3 not found"
 
-for cmd in cmake ninja auditwheel uv sha256sum; do
+for cmd in cmake ninja auditwheel uv; do
     require_cmd "$cmd"
 done
 
@@ -104,11 +104,7 @@ assert not missing, f'missing or non-callable bindings: {missing}'
 print(f'ecc_py smoke test passed: {len(required)} bindings verified')
 "
 
-# Checksums
-(cd "$repair_out" && sha256sum *.whl) > dist/wheel/SHA256SUMS
-
 echo "[build-wheel] done"
 echo "[build-wheel] raw wheels:      $raw_out"
 echo "[build-wheel] repaired wheels: $repair_out"
 echo "[build-wheel] report:          $show_report"
-echo "[build-wheel] checksums:       dist/wheel/SHA256SUMS"
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6b37bc00f..bdae8a92f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -35,10 +35,3 @@ jobs:
           path: dist/wheel/repaired/ecc_tools-*.whl
           retention-days: 7
           if-no-files-found: error
-
-      - name: Upload checksums
-        uses: actions/upload-artifact@v4
-        with:
-          name: checksums
-          path: dist/wheel/SHA256SUMS
-          retention-days: 7
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index e9bed2669..5b367ef83 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -35,7 +35,6 @@ jobs:
           name: ecc-tools-wheel
           path: |
             dist/wheel/repaired/ecc_tools-*.whl
-            dist/wheel/SHA256SUMS
 
   release:
     name: Create Release
@@ -85,7 +84,10 @@ jobs:
             echo "## Checksums"
             echo ""
             echo '```'
-            cat dist/wheel/SHA256SUMS
+            (
+              cd dist/wheel/repaired
+              sha256sum ecc_tools-*.whl
+            )
             echo '```'
           } > release-notes.md
           cat release-notes.md
@@ -97,5 +99,4 @@ jobs:
           gh release create "${{ steps.version.outputs.full_tag }}" \
             --title "ecc-tools ${{ steps.version.outputs.full_tag }}" \
             --notes-file release-notes.md \
-            dist/wheel/repaired/ecc_tools-*.whl \
-            dist/wheel/SHA256SUMS
+            dist/wheel/repaired/ecc_tools-*.whl