diff --git a/.github/workflows/image-smoke-test.yml b/.github/workflows/image-smoke-test.yml
index 6c56ff53..517eb4c4 100644
--- a/.github/workflows/image-smoke-test.yml
+++ b/.github/workflows/image-smoke-test.yml
@@ -7,6 +7,9 @@ on:
       - '.github/workflows/image-smoke-test.yml'
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   smoke:
     name: Smoke (${{ matrix.mode }})