diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index d983602..c4296cf 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -16,6 +16,8 @@ jobs:
       R_KEEP_PKG_SOURCE: yes
     steps:
       - uses: actions/checkout@v3
+        with:
+          persist-credentials: false
 
       - uses: r-lib/actions/setup-r@v2
         with:
diff --git a/.github/workflows/pkgdown.yaml b/.github/workflows/pkgdown.yaml
index e7466a0..2cc62da 100644
--- a/.github/workflows/pkgdown.yaml
+++ b/.github/workflows/pkgdown.yaml
@@ -21,6 +21,8 @@ jobs:
       GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
     steps:
       - uses: actions/checkout@v3
+        with:
+          persist-credentials: false
 
       - uses: r-lib/actions/setup-pandoc@v2