diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 69f89ec..c1f5e9c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,25 +4,23 @@ on:
   workflow_dispatch:
   push:
     branches: ["master"]
-  pull_request_target:
+  pull_request:
     branches: ["master"]
 
 jobs:
   tests:
     runs-on: self-hosted
 
-    strategy:
-      matrix:
-        node-version: [20.x] # Updated to a more recent LTS version
-
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
 
-      - name: Use Node.js ${{ matrix.node-version }}
+      - name: Use Node.js
         uses: actions/setup-node@v3
         with:
-          node-version: ${{ matrix.node-version }}
+          node-version: 20
           cache: "npm"
 
       - name: Install Dependencies