diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 206ce44..27abe32 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,13 +5,19 @@ on:
     branches: [main]
   pull_request:
     branches: [main]
+  workflow_dispatch:
+
+permissions:
+  contents: read
 
 jobs:
   self-test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@v5
+        with:
+          persist-credentials: false
+      - uses: actions/setup-python@v6
         with:
           python-version: "3.12"
       - name: Install