diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a9652c3..8c900e7 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,6 +8,8 @@ jobs:
   test:
     name: "maven@java17"
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
     strategy:
       matrix:
         showcase:
@@ -15,9 +17,11 @@ jobs:
           - "methods"
     steps:
       - name: Checkout code
-        uses: actions/checkout@v7
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
       - name: Install JDK
-        uses: actions/setup-java@v6
+        uses: actions/setup-java@dd06d9cba3e5552c54d9f8ea23572deb30010f7c # v6.0.0
         with:
           java-version: 17
           distribution: "temurin"