diff --git a/.github/workflows/consolidated-ci.yml b/.github/workflows/consolidated-ci.yml
index 6adf2029..4ea99c82 100644
--- a/.github/workflows/consolidated-ci.yml
+++ b/.github/workflows/consolidated-ci.yml
@@ -72,7 +72,7 @@ jobs:
         run: python scripts/validate_template_syntax.py
 
       - name: Upload validation artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         if: always()
         with:
           name: template-validation-report
@@ -181,7 +181,7 @@ jobs:
           verbose: true
 
       - name: Upload test results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         if: always()
         with:
           name: test-results-py${{ matrix.python-version }}
@@ -250,7 +250,7 @@ jobs:
           python -m twine check dist/*
 
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: python-packages-${{ steps.version.outputs.version }}
           path: dist/
diff --git a/.github/workflows/e2e-testing.yml b/.github/workflows/e2e-testing.yml
index 94093bce..6b466b20 100644
--- a/.github/workflows/e2e-testing.yml
+++ b/.github/workflows/e2e-testing.yml
@@ -171,7 +171,7 @@ jobs:
           pip list >> system_info.txt || echo "Failed to list packages" >> system_info.txt
 
       - name: Upload test artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         if: always()
         with:
           name: e2e-test-artifacts-py${{ matrix.python-version }}-${{ matrix.container-engine }}
@@ -183,7 +183,7 @@ jobs:
           retention-days: 7
 
       - name: Upload test reports
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         if: always()
         with:
           name: e2e-test-reports-py${{ matrix.python-version }}-${{ matrix.container-engine }}
@@ -220,7 +220,7 @@ jobs:
           safety check
 
       - name: Upload security reports
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         if: always()
         with:
           name: security-scan-reports
@@ -265,7 +265,7 @@ jobs:
           fi
 
       - name: Upload performance reports
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         if: always()
         with:
           name: performance-analysis-reports
@@ -344,7 +344,7 @@ jobs:
           cat SUMMARY.md
 
       - name: Upload integration summary
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: integration-test-summary
           path: SUMMARY.md
diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index 3d7c2b91..e02f905d 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -97,7 +97,7 @@ jobs:
         semgrep --config=auto src/ || echo "Semgrep found issues - check report"
     
     - name: Upload security reports
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v5
       if: always()
       with:
         name: security-reports