diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 15d100f..f811beb 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -27,6 +27,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+        with:
+          persist-credentials: false
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
         with:
diff --git a/_posts/2023-12-14-trusted-publishing.md b/_posts/2023-12-14-trusted-publishing.md
index afb424e..8a222d7 100644
--- a/_posts/2023-12-14-trusted-publishing.md
+++ b/_posts/2023-12-14-trusted-publishing.md
@@ -37,6 +37,8 @@ jobs:
     steps:
       # Set up
       - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with: