diff --git a/.github/workflows/ci-build-test.yml b/.github/workflows/ci-build-test.yml
index 01f7f81..9ffb9dd 100644
--- a/.github/workflows/ci-build-test.yml
+++ b/.github/workflows/ci-build-test.yml
@@ -138,7 +138,7 @@ jobs:
           dotnet test QRCoder.Core.Tests/ --configuration Release --logger "trx;LogFileName=test-results-net48.trx" --results-directory TestResults --framework net48 --verbosity normal
 
       - name: Upload Windows Test Results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         if: always()
         with:
           name: test-results-windows
@@ -237,7 +237,7 @@ jobs:
           token: ${{ secrets.CODECOV_TOKEN }}
 
       - name: 📤 Upload test results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         if: always()
         with:
           name: test-results-coverage
@@ -245,7 +245,7 @@ jobs:
           retention-days: 7
 
       - name: 📤 Upload coverage report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         if: always()
         with:
           name: coverage-report
diff --git a/.github/workflows/code-quality.yml b/.github/workflows/code-quality.yml
index 3e7a274..e987196 100644
--- a/.github/workflows/code-quality.yml
+++ b/.github/workflows/code-quality.yml
@@ -37,7 +37,7 @@ jobs:
           additional-cache-key: qodana-2025.3-refs/heads/main
 
       - name: 📊 Upload Qodana Results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         if: always()
         with:
           name: qodana-report
diff --git a/.github/workflows/publish-all.yml b/.github/workflows/publish-all.yml
index ff23e7a..e0cdafd 100644
--- a/.github/workflows/publish-all.yml
+++ b/.github/workflows/publish-all.yml
@@ -131,7 +131,7 @@ jobs:
           echo "  - NuGet.org: https://www.nuget.org/packages/QRCoder.Core"
 
       - name: � Upload Package Artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         if: always()
         with:
           name: nuget-packages