diff --git a/.github/workflows/live-test.yml b/.github/workflows/live-test.yml
index d31da75..a7a2429 100644
--- a/.github/workflows/live-test.yml
+++ b/.github/workflows/live-test.yml
@@ -3,7 +3,8 @@ on:
   pull_request:
 
 permissions:
-  contents: read
+  contents: write
+  checks: write
   pull-requests: write
 
 jobs:
diff --git a/.github/workflows/multiple-files.yml b/.github/workflows/multiple-files.yml
index 7fbe3cb..b9e8ebf 100644
--- a/.github/workflows/multiple-files.yml
+++ b/.github/workflows/multiple-files.yml
@@ -1,6 +1,12 @@
 name: Test Multipli File
 on:
   pull_request:
+
+permissions:
+  contents: write
+  checks: write
+  pull-requests: write
+
 jobs:
   test-multiple-files:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/test-branch.yml b/.github/workflows/test-branch.yml
index b32796d..0c01b57 100644
--- a/.github/workflows/test-branch.yml
+++ b/.github/workflows/test-branch.yml
@@ -4,6 +4,11 @@ on:
   pull_request:
   push:
 
+permissions:
+  contents: write
+  checks: write
+  pull-requests: write
+
 jobs:
   test-branch:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/update-coverage-on-readme.yml b/.github/workflows/update-coverage-on-readme.yml
index 5e269f7..709f4d4 100644
--- a/.github/workflows/update-coverage-on-readme.yml
+++ b/.github/workflows/update-coverage-on-readme.yml
@@ -3,6 +3,12 @@ on:
   push:
     branches:
       - test-branch
+
+permissions:
+  contents: write
+  checks: write
+  pull-requests: write
+
 jobs:
   update-coverage-on-readme:
     runs-on: ubuntu-latest
diff --git a/README.md b/README.md
index fff4812..1a1a740 100644
--- a/README.md
+++ b/README.md
@@ -99,6 +99,15 @@ on:
   pull_request:
     branches:
       - '*'
+
+# https://docs.github.com/en/actions/using-jobs/assigning-permissions-to-jobs
+# `contents` is for permission to the contents of the repository.
+# `pull-requests` is for permission to pull request
+permissions:
+  contents: write
+  checks: write
+  pull-requests: write
+
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -226,6 +235,15 @@ If your coverage html report will not change, it wouldn't push any changes to re
 name: Update Coverage on Readme
 on:
   push:
+
+# https://docs.github.com/en/actions/using-jobs/assigning-permissions-to-jobs
+# `contents` is for permission to the contents of the repository.
+# `pull-requests` is for permission to pull request
+permissions:
+  contents: write
+  checks: write
+  pull-requests: write
+
 jobs:
   update-coverage-on-readme:
     runs-on: ubuntu-latest