diff --git a/.github/workflows/build-and-test.yaml b/.github/workflows/build-and-test.yaml
index 25cdf9d..6d9e727 100644
--- a/.github/workflows/build-and-test.yaml
+++ b/.github/workflows/build-and-test.yaml
@@ -43,6 +43,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           ref: ${{ inputs.ref || (github.event.number && format('refs/pull/{0}/merge', github.event.number)) }}
+          persist-credentials: false
 
       - name: Configure Build Matrix
         id: configure
@@ -96,6 +97,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           ref: ${{ inputs.ref || (github.event.number && format('refs/pull/{0}/merge', github.event.number)) }}
+          persist-credentials: false
 
       - name: Set Python version
         uses: actions/setup-python@v5
diff --git a/.github/workflows/publish-docs.yaml b/.github/workflows/publish-docs.yaml
index 4368757..00af996 100644
--- a/.github/workflows/publish-docs.yaml
+++ b/.github/workflows/publish-docs.yaml
@@ -32,6 +32,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           ref: ${{ inputs.ref || github.ref }}
+          persist-credentials: false
 
       - name: Set Python version
         uses: actions/setup-python@v5