diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index d3ae07f..2d3f5c8 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -16,12 +16,17 @@ jobs:
     name: Foundry project
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@002fdce3c6a235733a90a27c80493a3241e56863 # v2.12.1
+        with:
+          egress-policy: audit
+
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           submodules: recursive
 
       - name: Install Foundry
-        uses: foundry-rs/foundry-toolchain@v1
+        uses: foundry-rs/foundry-toolchain@82dee4ba654bd2146511f85f0d013af94670c4de # v1.4.0
         with:
           version: nightly