diff --git a/.github/workflows/discussion_answering.yml b/.github/workflows/discussion_answering.yml
index d9bfffc361..431ae3db8d 100644
--- a/.github/workflows/discussion_answering.yml
+++ b/.github/workflows/discussion_answering.yml
@@ -24,7 +24,7 @@ jobs:
 
       - name: Authenticate to Google Cloud
         id: auth
-        uses: 'google-github-actions/auth@v2'
+        uses: 'google-github-actions/auth@v3'
         with:
           credentials_json: '${{ secrets.ADK_GCP_SA_KEY }}'
 
diff --git a/.github/workflows/upload-adk-docs-to-vertex-ai-search.yml b/.github/workflows/upload-adk-docs-to-vertex-ai-search.yml
index bce7598c2f..1529aaaf7a 100644
--- a/.github/workflows/upload-adk-docs-to-vertex-ai-search.yml
+++ b/.github/workflows/upload-adk-docs-to-vertex-ai-search.yml
@@ -28,7 +28,7 @@ jobs:
 
       - name: Authenticate to Google Cloud
         id: auth
-        uses: 'google-github-actions/auth@v2'
+        uses: 'google-github-actions/auth@v3'
         with:
           credentials_json: '${{ secrets.ADK_GCP_SA_KEY }}'