diff --git a/.github/workflows/build-docs.yml b/.github/workflows/build-docs.yml
index 84a01a76..d9a099c6 100644
--- a/.github/workflows/build-docs.yml
+++ b/.github/workflows/build-docs.yml
@@ -36,7 +36,7 @@ jobs:
         run: bundle exec rake doc
 
       - name: Upload generated doc
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: doc
           path: doc
diff --git a/.github/workflows/build-gems.yml b/.github/workflows/build-gems.yml
index f97df94b..35d45226 100644
--- a/.github/workflows/build-gems.yml
+++ b/.github/workflows/build-gems.yml
@@ -50,7 +50,7 @@ jobs:
           platform: ${{ matrix.ruby-platform }}
           ruby-versions: ${{ join(fromJSON(needs.ci-data.outputs.result).stable-ruby-versions, ',') }}
 
-      - uses: actions/upload-artifact@v5
+      - uses: actions/upload-artifact@v6
         with:
           name: cross-gem-${{ matrix.ruby-platform }}
           path: ${{ steps.cross-gem.outputs.gem-path }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index b5e19d40..67638581 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -50,7 +50,7 @@ jobs:
           platform: ${{ matrix.ruby-platform }}
           ruby-versions: ${{ join(fromJSON(needs.ci-data.outputs.result).stable-ruby-versions, ',') }}
 
-      - uses: actions/upload-artifact@v5
+      - uses: actions/upload-artifact@v6
         with:
           name: cross-gem-${{ matrix.ruby-platform }}
           path: pkg/*-${{ matrix.ruby-platform }}.gem