diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 15b80a8c..fe0d3176 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -79,6 +79,9 @@ jobs:
           targets: wasm32-unknown-unknown
 
       - uses: actions/setup-node@v4
+        with:
+          # Node 22.23.4 includes the October security fixes and updated CA roots.
+          node-version: '22.23.4'
 
       - name: Install wasm-pack
         run: cargo install wasm-pack