diff --git a/.github/workflows/cd-wheel.yml b/.github/workflows/cd-wheel.yml
index 19abb8b..7c7336d 100644
--- a/.github/workflows/cd-wheel.yml
+++ b/.github/workflows/cd-wheel.yml
@@ -192,7 +192,7 @@ jobs:
       working-directory: wheelhouse
 
     - id: upload
-      uses: actions/upload-artifact@v5
+      uses: actions/upload-artifact@v6
       with:
         name: "wheel-\
               ${{ steps.bootstrap.outputs.mpiname }}-\
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 266a9d6..76853e4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -126,7 +126,7 @@ jobs:
         sha256sum -b *.whl >> "$GITHUB_STEP_SUMMARY"
         echo '```'         >> "$GITHUB_STEP_SUMMARY"
       working-directory: wheelhouse
-    - uses: actions/upload-artifact@v5
+    - uses: actions/upload-artifact@v6
       with:
         name: wheelhouse
         path: wheelhouse/*.whl