diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0c9d553bee..7df0a4a3aa 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,6 +15,7 @@ jobs:
               uses: actions/checkout@v3
               with:
                 fetch-depth: 10
+                persist-credentials: false
 
             - name: Set up Python
               uses: actions/setup-python@v3
diff --git a/.github/workflows/translations.yml b/.github/workflows/translations.yml
index 683ad26f18..e12d3974c5 100644
--- a/.github/workflows/translations.yml
+++ b/.github/workflows/translations.yml
@@ -24,6 +24,7 @@ jobs:
               uses: actions/checkout@master
               with:
                 fetch-depth: 2
+                persist-credentials: false
 
             - name: Install calibre dependencies
               run: setup/arch-ci.sh