diff --git a/.github/workflows/tester.yml b/.github/workflows/tester.yml
index 40343e0..383b834 100644
--- a/.github/workflows/tester.yml
+++ b/.github/workflows/tester.yml
@@ -33,7 +33,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        node-version: ["18.x"]
+        node-version: ["20.x"]
     steps:
       - uses: actions/checkout@v4
       - name: Use Node.js ${{ matrix.node-version }}