diff --git a/.github/workflows/firebase-hosting-merge.yml b/.github/workflows/firebase-hosting-merge.yml
index cebde40..c8e352f 100644
--- a/.github/workflows/firebase-hosting-merge.yml
+++ b/.github/workflows/firebase-hosting-merge.yml
@@ -3,6 +3,10 @@ on:
     push:
         branches:
             - main
+
+permissions:
+    contents: read
+            
 jobs:
     build_and_deploy:
         runs-on: ubuntu-latest
diff --git a/.github/workflows/firebase-hosting-pull-request.yml b/.github/workflows/firebase-hosting-pull-request.yml
index 1c4b6e9..3cc3112 100644
--- a/.github/workflows/firebase-hosting-pull-request.yml
+++ b/.github/workflows/firebase-hosting-pull-request.yml
@@ -1,5 +1,10 @@
 name: Deploy preview on pull request
+
 on: pull_request
+
+permissions:
+    contents: read
+
 jobs:
     build_and_preview:
         if: '${{ github.event.pull_request.head.repo.full_name == github.repository }}'