diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index de538915..046478c5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -26,8 +26,8 @@ on:
 
 jobs:
   build:
-
-    runs-on: ubuntu-latest
+    container:
+      image: node:20-bookworm
 
     name: "build - crystal: ${{ matrix.crystal }}, stable: ${{ matrix.stable }}"