diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7ca9bb5..38b7137 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -75,7 +75,7 @@ jobs:
           echo "EOF" >> $GITHUB_ENV
 
       - name: Upload coverage HTML report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: coverage-report
           path: coverage-report
@@ -183,7 +183,7 @@ jobs:
           /p:PackageVersion=${{ env.PACKAGE_VERSION }}
 
       - name: Upload packages as artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: nuget-packages
           path: |
diff --git a/.github/workflows/pr-validation.yml b/.github/workflows/pr-validation.yml
index de22fb4..3f00599 100644
--- a/.github/workflows/pr-validation.yml
+++ b/.github/workflows/pr-validation.yml
@@ -136,7 +136,7 @@ jobs:
           ls -lh ./dry-run-packages/*.nupkg 2>/dev/null || echo "  No packages created"
 
       - name: Upload dry-run artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         if: always()
         with:
           name: dry-run-artifacts-${{ github.event.pull_request.number }}