diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ced6986..4e72177 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,13 +15,13 @@ jobs:
         node-version: [20.x, 22.x, 23.x, 24.x, 25.x]
       fail-fast: false
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Install pnpm
-        uses: pnpm/action-setup@v6
+        uses: pnpm/action-setup@0977fd99725f1db4007ccb2928dbb4e90d06cc86 # v6.0.10
 
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v7
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with:
           node-version: ${{ matrix.node-version }}
           cache: "pnpm"
@@ -41,13 +41,13 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v7
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Install pnpm
-        uses: pnpm/action-setup@v6
+        uses: pnpm/action-setup@0977fd99725f1db4007ccb2928dbb4e90d06cc86 # v6.0.10
 
       - name: Use Node.js
-        uses: actions/setup-node@v7
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with:
           cache: "pnpm"