diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 299972d..843e8d4 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -2,6 +2,8 @@ name: Build python package
 
 on: [push]
 
+permissions: {}
+
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -15,6 +17,8 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
 
       - name: Install uv
         uses: astral-sh/setup-uv@v5