diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e064cff..eaf8d25 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -72,7 +72,7 @@ jobs:
 
       # Run IDs are unique per repo but are reused on re-runs
     - name: Save artifact
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v6
       with:
         name: build_artifacts_${{ github.run_id }}
         path: |
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 9e0dba0..fed7a1d 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -59,7 +59,7 @@ jobs:
 
       - name: Upload artifacts
         if: github.event_name == 'pull_request'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           path: doc/deploy