diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 7ca244a..f6846bc 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -12,6 +12,10 @@ jobs:
   test:
     runs-on: ubuntu-latest
 
+    strategy:
+      matrix:
+        node-version: [18, 20]
+
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -19,7 +23,7 @@ jobs:
       - name: Set up Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version: ${{ matrix.node-version }}
 
       - name: Install dependencies
         run: npm ci
diff --git a/.nvmrc b/.nvmrc
index 2bd5a0a..209e3ef 100644
--- a/.nvmrc
+++ b/.nvmrc
@@ -1 +1 @@
-22
+20
diff --git a/package.json b/package.json
index a5e1020..98685dd 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "lint": "npm-run-all --parallel lint:*",
     "prepack": "npm run build",
     "pretest": "npm run build",
-    "test": "c8 --100 --exclude 'dist/proto/*' node --test test",
+    "test": "c8 --100 --exclude 'dist/proto/*' node --test",
     "posttest": "c8 report --reporter=text-lcov > ./coverage/lcov.info",
     "prepare": "husky"
   },