diff --git a/.github/workflows/image-build-and-publish-push.yaml b/.github/workflows/image-build-and-publish-push.yaml
index 43610a7..7e937ee 100644
--- a/.github/workflows/image-build-and-publish-push.yaml
+++ b/.github/workflows/image-build-and-publish-push.yaml
@@ -16,6 +16,8 @@ jobs:
       apps: ${{ steps.filter.outputs.changes }}
     steps:
       - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
       - uses: dorny/paths-filter@v3
         id: filter
         with:
@@ -39,6 +41,8 @@ jobs:
     steps:
       - name: "[prind] checkout"
         uses: actions/checkout@v4
+        with:
+          persist-credentials: false
       - name: "[prind] set up build environment"
         uses: ./.github/actions/image-build-common
       - name: "[docker] login"
diff --git a/.github/workflows/image-build-and-publish-schedule.yaml b/.github/workflows/image-build-and-publish-schedule.yaml
index 574ad26..d5393ee 100644
--- a/.github/workflows/image-build-and-publish-schedule.yaml
+++ b/.github/workflows/image-build-and-publish-schedule.yaml
@@ -16,6 +16,8 @@ jobs:
     steps:
       - name: "[prind] checkout"
         uses: actions/checkout@v4
+        with:
+          persist-credentials: false
       - name: "[prind] set up build environment"
         uses: ./.github/actions/image-build-common
       - name: "[docker] login"
diff --git a/.github/workflows/image-build-review.yaml b/.github/workflows/image-build-review.yaml
index 9b9112a..3e40e2c 100644
--- a/.github/workflows/image-build-review.yaml
+++ b/.github/workflows/image-build-review.yaml
@@ -16,6 +16,8 @@ jobs:
       apps: ${{ steps.filter.outputs.changes }}
     steps:
       - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
       - uses: dorny/paths-filter@v3
         id: filter
         with:
@@ -56,6 +58,8 @@ jobs:
     steps:
       - name: "[prind] checkout"
         uses: actions/checkout@v4
+        with:
+          persist-credentials: false
       - name: "[prind] set up build environment"
         uses: ./.github/actions/image-build-common
       - name: "[prind] build"
diff --git a/.github/workflows/image-docs-publish.yaml b/.github/workflows/image-docs-publish.yaml
index 61d5f97..35efcef 100644
--- a/.github/workflows/image-docs-publish.yaml
+++ b/.github/workflows/image-docs-publish.yaml
@@ -17,6 +17,8 @@ jobs:
       apps: ${{ steps.filter.outputs.changes }}
     steps:
       - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
       - uses: dorny/paths-filter@v3
         id: filter
         with:
@@ -42,6 +44,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
       - name: "Update Docker Hub Description"
         uses: peter-evans/dockerhub-description@v4
         with:
diff --git a/.github/workflows/pr-yamllint.yaml b/.github/workflows/pr-yamllint.yaml
index d212cda..977bf2f 100644
--- a/.github/workflows/pr-yamllint.yaml
+++ b/.github/workflows/pr-yamllint.yaml
@@ -7,5 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
       - name: Run yamllint
         uses: reviewdog/action-yamllint@v1