diff --git a/.github/workflows/default.yml b/.github/workflows/default.yml
index 2482a12..6590d9a 100644
--- a/.github/workflows/default.yml
+++ b/.github/workflows/default.yml
@@ -59,7 +59,7 @@ jobs:
 
       - run: git diff --exit-code
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         if: ${{ always() }}
         with:
           name: test-results-${{ matrix.os }}
diff --git a/.github/workflows/run_diffuse.yml b/.github/workflows/run_diffuse.yml
index c2d0047..cbf10d7 100644
--- a/.github/workflows/run_diffuse.yml
+++ b/.github/workflows/run_diffuse.yml
@@ -85,7 +85,7 @@ jobs:
           issue-number: ${{ github.event.pull_request.number }}
           token: ${{ secrets.GITHUB_TOKEN }}
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: diffuse-output
           path: ${{ steps.diffuse.outputs.diff-file }}