diff --git a/.github/workflows/coverage-comment.yaml b/.github/workflows/coverage-comment.yaml
index a6b6001d2..2421f6e38 100644
--- a/.github/workflows/coverage-comment.yaml
+++ b/.github/workflows/coverage-comment.yaml
@@ -18,7 +18,7 @@ jobs:
       github.event.workflow_run.conclusion == 'success'
     steps:
       - name: Download Coverage Artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           run-id: ${{ github.event.workflow_run.id }}
           github-token: ${{ secrets.A2A_BOT_PAT }}
@@ -26,14 +26,14 @@ jobs:
       
       - name: Upload Coverage Report
         id: upload-report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: coverage-report
           path: coverage/
           retention-days: 14
 
       - name: Post Comment
-        uses: actions/github-script@v6
+        uses: actions/github-script@v8
         env:
           ARTIFACT_URL: ${{ steps.upload-report.outputs.artifact-url }}
         with:
diff --git a/.github/workflows/unit-tests.yml b/.github/workflows/unit-tests.yml
index 6cc79e5f9..32094eff6 100644
--- a/.github/workflows/unit-tests.yml
+++ b/.github/workflows/unit-tests.yml
@@ -60,7 +60,7 @@ jobs:
       # Coverage comparison for PRs (only on Python 3.13 to avoid duplicate work)
       - name: Checkout Base Branch
         if: github.event_name == 'pull_request' && matrix.python-version == '3.13'
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           ref: ${{ github.event.pull_request.base.ref || 'main' }}
           clean: true
@@ -73,7 +73,7 @@ jobs:
 
       - name: Checkout PR Branch (Restore)
         if: github.event_name == 'pull_request' && matrix.python-version == '3.13'
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           clean: true
 
@@ -91,7 +91,7 @@ jobs:
           echo ${{ github.event.pull_request.base.ref || 'main' }} > ./BASE_BRANCH
 
       - name: Upload Coverage Artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: github.event_name == 'pull_request' && matrix.python-version == '3.13'
         with:
           name: coverage-data
@@ -109,7 +109,7 @@ jobs:
         run: uv run pytest --cov=a2a --cov-report term --cov-fail-under=88
 
       - name: Upload Artifact (base)
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: github.event_name != 'pull_request' && matrix.python-version == '3.13'
         with:
           name: coverage-report