diff --git a/.github/workflows/build_pull_request.yml b/.github/workflows/build_pull_request.yml
index b6166b3c..8106a3c7 100644
--- a/.github/workflows/build_pull_request.yml
+++ b/.github/workflows/build_pull_request.yml
@@ -15,13 +15,11 @@ jobs:
   prepare:
     name: Prepare job
     runs-on: docker
+    container:
+      image: node:18-alpine
     outputs:
       individualMatrix: ${{ steps.generate-matrices.outputs.individualMatrix }}
-    steps:
-      - name: Install Node.js
-        run: |
-          apk add --update nodejs npm
-     
+    steps:    
       - name: Clone repo
         uses: https://github.com/actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4