diff --git a/.github/workflows/shellcheck.yml b/.github/workflows/shellcheck.yml
index ac7d32776..6901c0099 100644
--- a/.github/workflows/shellcheck.yml
+++ b/.github/workflows/shellcheck.yml
@@ -11,6 +11,9 @@ on:
       - '.github/workflows/shellcheck.yml'
       - '.shellcheckrc'
 
+permissions:
+  contents: read
+
 jobs:
   shellcheck:
     runs-on: ubuntu-latest