diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 96c29c1..3fb9af3 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -1,4 +1,6 @@
 name: CI
+permissions:
+  contents: read
 
 on:
   push: