diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6fea3bb..859c3c4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,9 +6,17 @@ on:
 jobs:
   lint-and-test:
     runs-on: ubuntu-latest
+    permissions:
+      id-token: write
     steps:
+      - name: Harden the runner
+        uses: step-security/harden-runner@95d9a5deda9de15063e7595e9719c11c38c90ae2 # v2.13.2
+        with:
+          egress-policy: block
+          policy: global-allowed-endpoints-policy
+
       - name: Check out repository code
-        uses: actions/checkout@v3
+        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
 
   scan:
     needs: lint-and-test