diff --git a/.github/workflows/delete-artifacts-of-workflow.yml b/.github/workflows/delete-artifacts-of-workflow.yml
index 5900d1a..d086b9e 100644
--- a/.github/workflows/delete-artifacts-of-workflow.yml
+++ b/.github/workflows/delete-artifacts-of-workflow.yml
@@ -19,12 +19,12 @@ jobs:
           mkdir site
           echo "This is a preview site for <b>PR #${PR_NUMBER}</b>" > site/file1.html
           echo "This is a another preview site for <b>PR #${PR_NUMBER}</b>" > site/file2.html
-      - uses: actions/upload-artifact@v5
+      - uses: actions/upload-artifact@v6
         with:
           name: artifact-1
           path: site/file1.html
           if-no-files-found: error
-      - uses: actions/upload-artifact@v5
+      - uses: actions/upload-artifact@v6
         with:
           name: artifact-2
           path: site/file2.html
diff --git a/.github/workflows/deploy-documentation-pr.yml b/.github/workflows/deploy-documentation-pr.yml
index 2286407..2b934c7 100644
--- a/.github/workflows/deploy-documentation-pr.yml
+++ b/.github/workflows/deploy-documentation-pr.yml
@@ -21,7 +21,7 @@ jobs:
       - name: Build documentation
         uses: ./.github/actions/build-documentation
       - name: Upload
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: documentation-${{github.sha}}
           path: build/docs
diff --git a/.github/workflows/post-release-upload-demo-archive-and-trigger-companion-repositories-update.yml b/.github/workflows/post-release-upload-demo-archive-and-trigger-companion-repositories-update.yml
index 6f8f02e..4266de0 100644
--- a/.github/workflows/post-release-upload-demo-archive-and-trigger-companion-repositories-update.yml
+++ b/.github/workflows/post-release-upload-demo-archive-and-trigger-companion-repositories-update.yml
@@ -27,7 +27,7 @@ jobs:
       - name: Set ARTIFACT_NAME
         run: echo "ARTIFACT_NAME=demo-${{github.sha}}" >> $GITHUB_ENV
       - name: Upload Demo
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: ${{ env.ARTIFACT_NAME }}
           path: LICENSE
diff --git a/.github/workflows/surge-pr-fork-01-build.yml b/.github/workflows/surge-pr-fork-01-build.yml
index 63c16e2..8581f5c 100644
--- a/.github/workflows/surge-pr-fork-01-build.yml
+++ b/.github/workflows/surge-pr-fork-01-build.yml
@@ -24,7 +24,7 @@ jobs:
           sed -i "s/@PR_NUMBER@/${PR_NUMBER}/g" site/index.html
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: pr-build-dist # must be kept in sync with the artifact name downloaded in the deploy stage
           path: site/