diff --git a/.github/workflows/pr-build-gems.yml b/.github/workflows/pr-build-gems.yml
index 3402a7c..4999a38 100644
--- a/.github/workflows/pr-build-gems.yml
+++ b/.github/workflows/pr-build-gems.yml
@@ -1,4 +1,6 @@
 name: PR Build for AWS OTel Ruby Gems
+permissions:
+  contents: read
 
 on:
   workflow_dispatch: