diff --git a/.github/workflows/gcp-rpm-build-and-test.yml b/.github/workflows/gcp-rpm-build-and-test.yml
index fd0b810..15ed781 100644
--- a/.github/workflows/gcp-rpm-build-and-test.yml
+++ b/.github/workflows/gcp-rpm-build-and-test.yml
@@ -54,19 +54,33 @@ jobs:
     # instead we assume success at the beginning and then let any axis that fails remove the
     # lastSuccessfulBuild link if it fails
     name: Create lastBuild and lastSuccessfulBuild symlinks
+    permissions:
+      statuses: write
+      contents: read
+      id-token: write
     runs-on: [self-hosted, gcp]
     steps:
+      # we are required to checkout the code to have auth save the token we need for GCSFUSE
+      # per https://github.com/google-github-actions/auth#inputs-miscellaneous
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
       - name: Authenticate to GCP
         id: gcp-authentication
         uses: 'google-github-actions/auth@v2'
         with:
           project_id: ${{ env.PROJECT_ID }}
           workload_identity_provider: ${{ env.WIP_PROVIDER }}
+          create_credentials_file: true
+          token_format: access_token
+      - name: "Set up Cloud SDK"
+        uses: "google-github-actions/setup-gcloud@v2"
       - name: Set up GCSFUSE
         run: |
-              fusermount -u ${GCS_BUCKET_MOUNT_PT} || true
+              sudo fusermount -u ${GCS_BUCKET_MOUNT_PT} && sudo rm -fr /tmp/gcp_artifacts || true
               mkdir -p "${GCS_BUCKET_MOUNT_PT}"
-              gcsfuse --implicit-dirs "${GCS_BUCKET}" "${GCS_BUCKET_MOUNT_PT}"
+              sudo -u ext_mlawsonca_google_com gcsfuse --implicit-dirs "${GCS_BUCKET}" "${GCS_BUCKET_MOUNT_PT}"
       - name: Create lastBuild and lastSuccessfulBuild symlinks
         run: mkdir -p ${REPO_PATH};
                rm -f ${REPO_PATH}last{,Successful}Build;
@@ -104,6 +118,8 @@ jobs:
     name: Build RPM
     permissions:
       statuses: write
+      contents: read
+      id-token: write
     runs-on: [self-hosted, gcp]
     needs: [Create-symlinks, Calc-rpm-build-matrix]
     if: needs.Create-symlinks.result == 'success' &&
@@ -233,11 +249,15 @@ jobs:
         with:
           project_id: ${{ env.PROJECT_ID }}
           workload_identity_provider: ${{ env.WIP_PROVIDER }}
+          create_credentials_file: true
+          token_format: access_token
+      - name: "Set up Cloud SDK"
+        uses: "google-github-actions/setup-gcloud@v2"
       - name: Set up GCSFUSE
         run: |
-              fusermount -u ${GCS_BUCKET_MOUNT_PT} || true
+              sudo fusermount -u ${GCS_BUCKET_MOUNT_PT} && sudo rm -fr /tmp/gcp_artifacts || true
               mkdir -p "${GCS_BUCKET_MOUNT_PT}"
-              gcsfuse --implicit-dirs "${GCS_BUCKET}" "${GCS_BUCKET_MOUNT_PT}"
+              sudo -u ext_mlawsonca_google_com gcsfuse --implicit-dirs "${GCS_BUCKET}" "${GCS_BUCKET_MOUNT_PT}"
       - name: Remove lastSuccessfulBuild link and exit failure
         if: steps.test-repo.outcome != 'success'
         run: rm -f ${REPO_PATH}lastSuccessfulBuild;