diff --git a/.github/workflows/check-pr-title.yml b/.github/workflows/check-pr-title.yml
index 1f51dd9..4f083fb 100644
--- a/.github/workflows/check-pr-title.yml
+++ b/.github/workflows/check-pr-title.yml
@@ -8,6 +8,9 @@ on:
       - ready_for_review
       - reopened
 
+permissions:
+  pull-requests: read
+
 jobs:
   check-pr-title:
     name: Check PR title
diff --git a/.github/workflows/test-and-lint-js.yml b/.github/workflows/test-and-lint-js.yml
index a824d97..5d0893c 100644
--- a/.github/workflows/test-and-lint-js.yml
+++ b/.github/workflows/test-and-lint-js.yml
@@ -10,6 +10,9 @@ on:
       - 'package.json'
       - 'package.lock'
 
+permissions:
+  contents: read
+
 jobs:
   test-and-lint-js:
     name: Test & lint JS codebase
diff --git a/.github/workflows/test-and-lint-php.yml b/.github/workflows/test-and-lint-php.yml
index d5074e0..0510d4b 100644
--- a/.github/workflows/test-and-lint-php.yml
+++ b/.github/workflows/test-and-lint-php.yml
@@ -11,6 +11,9 @@ on:
       - 'phpunit.xml.dist'
       - '.env.ci'
 
+permissions:
+  contents: read
+
 jobs:
   test-and-lint-php:
     name: Test & lint PHP codebase