diff --git a/.github/workflows/codestyle.yml b/.github/workflows/codestyle.yml
index a63c5ab..7e79479 100644
--- a/.github/workflows/codestyle.yml
+++ b/.github/workflows/codestyle.yml
@@ -6,6 +6,9 @@ on:
     - master
   pull_request:
 
+permissions:
+  contents: read
+
 jobs:
   php:
     name: PHP
diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index 9913c08..a6f69dd 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -10,6 +10,9 @@ on:
     - master
   pull_request:
 
+permissions:
+  contents: read
+
 jobs:
   syntax:
     name: "Check Syntax (${{ matrix.php }})"
diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index 0facc2b..6d94faf 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -10,6 +10,10 @@ on:
     - ready_for_review
     - review_requested
 
+permissions:
+  contents: read
+  pull-requests: read
+
 jobs:
   commit_message:
     name: Check Commit Message