diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fc32d9a..88c2161 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,9 +13,9 @@ jobs:
         node-version: ['20.x', '22.x', '24.x']
     steps:
       - name: Check out repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Set up Node.js v${{ matrix.node-version }}
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6.1.0
         with:
           node-version: ${{ matrix.node-version }}
           cache: 'npm'