diff --git a/.github/workflows/testsuite.yml b/.github/workflows/testsuite.yml
index 25521d3..02835c6 100644
--- a/.github/workflows/testsuite.yml
+++ b/.github/workflows/testsuite.yml
@@ -1,5 +1,8 @@
 name: testsuite
 
+permissions:
+  contents: read
+
 on:
   push:
     branches: