diff --git a/.github/workflows/audit.yml b/.github/workflows/audit.yml
index 1eeca6a..3c3e610 100644
--- a/.github/workflows/audit.yml
+++ b/.github/workflows/audit.yml
@@ -22,10 +22,10 @@ jobs:
   audit:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v7
-      - uses: actions/setup-node@v7
+      - uses: actions/checkout@v7.0.1
+      - uses: actions/setup-node@v7.1.0
         with:
-          node-version: "24"
+          node-version: "24.22.0"
       - name: Audit (high severity gate)
         run: npm audit --audit-level=high
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4070747..daf7cf5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,10 +18,10 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v7
-      - uses: actions/setup-node@v7
+      - uses: actions/checkout@v7.0.1
+      - uses: actions/setup-node@v7.1.0
         with:
-          node-version: "24"
+          node-version: "24.22.0"
           cache: npm
       - run: npm ci
       - name: Typecheck