diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 6da82ef..8499984 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -1,4 +1,6 @@
 name: tests
+permissions:
+  contents: read
 
 on:
   pull_request: