diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 086103f..76c7ace 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -126,7 +126,7 @@ jobs:
         run: |
           python -m cibuildwheel --output-dir wheelhouse
 
-      - uses: actions/upload-artifact@v3  # Don't upgrade to v4 until each artifact is named
+      - uses: actions/upload-artifact@v4  # Don't upgrade to v4 until each artifact is named
         with:
           path: ./wheelhouse/*.whl
 
@@ -162,7 +162,7 @@ jobs:
           python -m pip install --upgrade "setuptools>=61" wheel "numpy>=2.0,<3"
           python setup.py sdist
 
-      - uses: actions/upload-artifact@v3  # Don't upgrade to v4 until each artifact is named
+      - uses: actions/upload-artifact@v4  # Don't upgrade to v4 until each artifact is named
         with:
           path: dist/*.tar.gz