diff --git a/.github/workflows/build-distributables.yml b/.github/workflows/build-distributables.yml
index 1e66b6bf..5389dcb1 100644
--- a/.github/workflows/build-distributables.yml
+++ b/.github/workflows/build-distributables.yml
@@ -166,7 +166,7 @@ jobs:
         tar -czf "artifacts/$FULL_PACKAGE_NAME.tar.gz" "$PRODUCT_NAME"
 
     - name: Upload artifacts
-      uses: actions/upload-artifact@v5
+      uses: actions/upload-artifact@v6
       with:
         name: artifacts-${{ matrix.config.os }}-${{ matrix.config.py }}
         path: artifacts/*
diff --git a/.github/workflows/publish-pypi.yml b/.github/workflows/publish-pypi.yml
index df2294a3..dffd0f37 100644
--- a/.github/workflows/publish-pypi.yml
+++ b/.github/workflows/publish-pypi.yml
@@ -41,7 +41,7 @@ jobs:
       run: python -m build refl1d
 
     - name: Upload the wheel artifact
-      uses: actions/upload-artifact@v5
+      uses: actions/upload-artifact@v6
       with:
         name: artifacts
         path: |