diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index bb04bb138..012096ae2 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -2,6 +2,9 @@ name: CI
 
 on: [push, pull_request]
 
+permissions:
+  contents: read
+
 jobs:
   test_iOS:
     name: Test iOS on ${{ matrix.os }}
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 20aba6ecf..c1a028888 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -5,6 +5,9 @@ on:
     types:
      - created
 
+permissions:
+  contents: read
+
 jobs:
   publish: