diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 517cc79..751c964 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -1,5 +1,7 @@
 name: Notify twitter
 on: [push]
+permissions:
+  contents: read
 jobs:
   setup:
     runs-on: ubuntu-latest