diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 55859c6..2cea59b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,6 +1,14 @@
 name: build
 
-on: [pull_request, push]
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
 
 permissions:
   contents: read
@@ -10,21 +18,23 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['20', '22', '24']
+        node-version: ['22', '24']
     steps:
       - name: Checkout
         uses: actions/checkout@v6.0.2
 
-      - name: Setup Node.js environment
-        uses: actions/setup-node@v6.3.0
-        with:
-          node-version: ${{ matrix.node-version }}
-
       - name: Setup PNPM
         uses: pnpm/action-setup@v6.0.8
         with:
           version: 11.27.1
 
+      - name: Setup Node.js environment
+        uses: actions/setup-node@v6.3.0
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: pnpm
+          cache-dependency-path: pnpm-lock.yaml
+
       - name: Install modules and build projects
         run: pnpm install --frozen-lockfile && pnpm run build
 
@@ -52,25 +62,24 @@ jobs:
 
   Lint:
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        node-version: ['20', '22', '24']
     steps:
       - name: Checkout
         uses: actions/checkout@v6.0.2
 
-      - name: Setup Node.js environment
-        uses: actions/setup-node@v6.3.0
-        with:
-          node-version: ${{ matrix.node-version }}
-
       - name: Setup PNPM
         uses: pnpm/action-setup@v6.0.8
         with:
           version: 11.27.1
 
-      - name: Install modules and build projects
-        run: pnpm install --frozen-lockfile && pnpm run build
+      - name: Setup Node.js environment
+        uses: actions/setup-node@v6.3.0
+        with:
+          node-version: '22'
+          cache: pnpm
+          cache-dependency-path: pnpm-lock.yaml
 
-      - name: Run tests
+      - name: Install modules
+        run: pnpm install --frozen-lockfile
+
+      - name: Run lint
         run: pnpm run lint
diff --git a/README.md b/README.md
index 01472a5..c1d8267 100644
--- a/README.md
+++ b/README.md
@@ -153,7 +153,7 @@ pnpm run test:mdx3
 
 ### 环境要求
 
-- Node.js >= 20
+- Node.js >= 22
 - pnpm 11（参见 `packageManager` 字段）
 
 ```bash
diff --git a/package.json b/package.json
index d38ee00..a12e121 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
   "sideEffects": false,
   "packageManager": "pnpm@11.27.1",
   "engines": {
-    "node": ">=20"
+    "node": ">=22"
   },
   "main": "./dist/lint-md-parser.cjs",
   "module": "./dist/lint-md-parser.mjs",