diff --git a/.github/workflows/ConventionCheck.yaml b/.github/workflows/ConventionCheck.yaml
deleted file mode 100644
index 2bb29e4..0000000
--- a/.github/workflows/ConventionCheck.yaml
+++ /dev/null
@@ -1,15 +0,0 @@
-name: ConventionCheck
-
-on:
-  push:
-    branches: [main]
-
-  pull_request:
-    branches: [main]
-
-jobs:
-  ConventionCheck:
-    runs-on: ubuntu-latest
-
-    # 1. Markdownlint
-    # 2. EditorConfig
diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
new file mode 100644
index 0000000..668c67e
--- /dev/null
+++ b/.github/workflows/lint.yaml
@@ -0,0 +1,34 @@
+name: lint
+
+on:
+  push:
+    branches: [main]
+
+  pull_request:
+    branches: [main]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Set up checkout
+        uses: actions/checkout@v4
+
+      - name: Set up node
+        uses: actions/setup-node@v4
+        with:
+          node-version-file: .nvmrc
+          cache: npm
+
+      - name: Set up cache
+        uses: actions/cache@v4
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
+
+      - name: Set up node_modules
+        run: npm ci
+
+      - name: Lint markdownlint
+        run: npm run lint-markdownlint