diff --git a/.github/workflows/browser.yml b/.github/workflows/browser.yml
index add756cf..57605d5a 100644
--- a/.github/workflows/browser.yml
+++ b/.github/workflows/browser.yml
@@ -6,6 +6,9 @@ on:
       - 'main'
   pull_request:
 
+permissions:
+  contents: read
+
 jobs:
   browser:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/cloud.yml b/.github/workflows/cloud.yml
index a62d1d9c..b1f96267 100644
--- a/.github/workflows/cloud.yml
+++ b/.github/workflows/cloud.yml
@@ -6,6 +6,9 @@ on:
       - 'main'
   pull_request:
 
+permissions:
+  contents: read
+
 jobs:
   qa:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/initiate_release.yml b/.github/workflows/initiate_release.yml
index 878213aa..ec49fad7 100644
--- a/.github/workflows/initiate_release.yml
+++ b/.github/workflows/initiate_release.yml
@@ -7,6 +7,10 @@ on:
         description: "The new version number with 'v' prefix. Example: v1.40.1"
         required: true
 
+permissions:
+  contents: write
+  pull-requests: write
+
 jobs:
   init_release:
     name: 🚀 Create release PR
diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml
index d1188786..fb03d1df 100644
--- a/.github/workflows/integration.yml
+++ b/.github/workflows/integration.yml
@@ -6,6 +6,9 @@ on:
       - 'main'
   pull_request:
 
+permissions:
+  contents: read
+
 jobs:
   integration:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index af17043c..61474dbd 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -6,6 +6,9 @@ on:
       - 'main'
   pull_request:
 
+permissions:
+  contents: read
+
 jobs:
   lint:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/size.yml b/.github/workflows/size.yml
index a83e86e2..7e11c0f0 100644
--- a/.github/workflows/size.yml
+++ b/.github/workflows/size.yml
@@ -8,6 +8,9 @@ on:
       - 'test/**'
       - '**.md'
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/type.yml b/.github/workflows/type.yml
index 7e2b770e..a8b36d54 100644
--- a/.github/workflows/type.yml
+++ b/.github/workflows/type.yml
@@ -6,6 +6,9 @@ on:
       - 'main'
   pull_request:
 
+permissions:
+  contents: read
+
 jobs:
   types:
     runs-on: ubuntu-latest