diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7893f89..3dbcfc1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,6 +4,8 @@ on:
   push:
     branches:
       - main
+permissions:
+  contents: read
 
 jobs:
   build-and-test:
@@ -58,4 +60,4 @@ jobs:
 
       - name: Build testing-code
         run: go build
-        working-directory: exercises/testing-code/solution/worker
\ No newline at end of file
+        working-directory: exercises/testing-code/solution/worker