diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3f9f98248..923bb67bd 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -2,6 +2,9 @@ name: Build
 
 on: [push, pull_request]
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/check-readme-in-sync.yml b/.github/workflows/check-readme-in-sync.yml
index 28a82a29a..13912e5b9 100644
--- a/.github/workflows/check-readme-in-sync.yml
+++ b/.github/workflows/check-readme-in-sync.yml
@@ -10,6 +10,9 @@ on:
     branches:
       - gh-pages
 
+permissions:
+  contents: read
+
 jobs:
   check:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/e2e b/.github/workflows/e2e
index f0c498e02..bd7a8f155 100644
--- a/.github/workflows/e2e
+++ b/.github/workflows/e2e
@@ -2,6 +2,9 @@ name: E2E
 
 on: [push, pull_request]
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest