diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6e283a6..4066ad8 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -63,7 +63,7 @@ jobs:
         pip uninstall -y "jupyter_server_nbmodel" jupyterlab
 
     - name: Upload extension packages
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v5
       with:
         name: extension-artifacts
         path: dist/jupyter_server_nbmodel*
@@ -149,7 +149,7 @@ jobs:
 
     - name: Upload Playwright Test report
       if: always()
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v5
       with:
         name: jupyter_server_nbmodel-playwright-tests
         path: |
diff --git a/.github/workflows/check-release.yml b/.github/workflows/check-release.yml
index 0420965..4124005 100644
--- a/.github/workflows/check-release.yml
+++ b/.github/workflows/check-release.yml
@@ -24,7 +24,7 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Upload Distributions
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: jupyter_server_nbmodel-releaser-dist-${{ github.run_number }}
           path: .jupyter_releaser_checkout/dist