diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index e4ffa87..23aae1d 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -11,6 +11,9 @@ defaults:
   run:
     shell: bash
 
+permissions:
+  contents: read
+
 jobs:
   test:
     runs-on: ubuntu-latest
@@ -52,6 +55,7 @@ jobs:
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
 
+
       - name: Check documentation spelling
         run: make spelling
         working-directory: ./doc