diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 4658019..2d91cd7 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -7,6 +7,9 @@ on:
       - master
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   smoke:
     # Cross-OS coverage. Exercises the bootstrap install + PATH on each platform,