diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 00334e1..856f142 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -12,6 +12,8 @@ jobs:
     uses: ./.github/workflows/test.yml
 
   publish:
+    permissions:
+      contents: read
     name: Publish on registry
     runs-on: ubuntu-latest
     needs: test
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index cda9f0f..a4718e4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,8 +8,12 @@ concurrency:
   group: run-tests-group-${{ github.ref }}
   cancel-in-progress: true
 
+permissions: {}
+
 jobs:
   test:
+    permissions:
+      contents: read
     name: Unit Tests
     runs-on: ubuntu-latest
     defaults:
@@ -18,7 +22,7 @@ jobs:
         working-directory: charts/unit-tests
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Install Helm
         run: |