diff --git a/.github/workflows/integration-tests.yml b/.github/workflows/integration-tests.yml
index cf6787a8d8e77..cf869eea173cd 100644
--- a/.github/workflows/integration-tests.yml
+++ b/.github/workflows/integration-tests.yml
@@ -12,6 +12,9 @@ concurrency:
     group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
     cancel-in-progress: true
 
+permissions:
+  contents: read
+
 jobs:
 
   tests:
diff --git a/.github/workflows/intl-data-tests.yml b/.github/workflows/intl-data-tests.yml
index bb54e306c3d4d..477278e416c4d 100644
--- a/.github/workflows/intl-data-tests.yml
+++ b/.github/workflows/intl-data-tests.yml
@@ -16,6 +16,9 @@ concurrency:
     group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
     cancel-in-progress: true
 
+permissions:
+  contents: read
+
 jobs:
   tests:
     name: Tests
diff --git a/.github/workflows/phpunit-bridge.yml b/.github/workflows/phpunit-bridge.yml
index e8a19360a8b32..d10098d119114 100644
--- a/.github/workflows/phpunit-bridge.yml
+++ b/.github/workflows/phpunit-bridge.yml
@@ -16,6 +16,9 @@ concurrency:
     group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
     cancel-in-progress: true
 
+permissions:
+  contents: read
+
 jobs:
   lint:
     name: Lint
diff --git a/.github/workflows/psalm.yml b/.github/workflows/psalm.yml
index 8631d6c6a2b3d..96f34721f4a46 100644
--- a/.github/workflows/psalm.yml
+++ b/.github/workflows/psalm.yml
@@ -11,6 +11,9 @@ concurrency:
     group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
     cancel-in-progress: true
 
+permissions:
+  contents: read
+
 jobs:
   psalm:
     name: Psalm
diff --git a/.github/workflows/unit-tests.yml b/.github/workflows/unit-tests.yml
index 6be35796056d5..c9bd72085e803 100644
--- a/.github/workflows/unit-tests.yml
+++ b/.github/workflows/unit-tests.yml
@@ -12,6 +12,9 @@ concurrency:
     group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
     cancel-in-progress: true
 
+permissions:
+  contents: read
+
 jobs:
 
   tests: