diff --git a/package.json b/package.json
index 65a9ac1..b90935c 100644
--- a/package.json
+++ b/package.json
@@ -92,7 +92,6 @@
     "chalk": "5.4.1",
     "cpy": "11.1.0",
     "cpy-cli": "5.0.0",
-    "del": "8.0.0",
     "eslint": "9.17.0",
     "eslint-plugin-jsdoc": "50.6.1",
     "eslint-plugin-n": "17.15.1",
diff --git a/test/markdownlint-cli2-test-cases.mjs b/test/markdownlint-cli2-test-cases.mjs
index cd0278f..8aa68c4 100644
--- a/test/markdownlint-cli2-test-cases.mjs
+++ b/test/markdownlint-cli2-test-cases.mjs
@@ -4,6 +4,7 @@ import fs from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
 import test from "ava";
+import cpy from "cpy";
 import { __dirname } from "./esm-helpers.mjs";
 
 const noop = () => null;
@@ -140,16 +141,13 @@ const testCases = ({
 
   const directoryName = (dir) => `${dir}-copy-${host}`;
 
-  const copyDirectory = (dir, alt) => import("cpy").then((cpy) => (
-    cpy.default(
-      path.join(__dirname(import.meta), (alt || dir), "**"),
-      path.join(__dirname(import.meta), directoryName(dir))
-    )
-  ));
+  const copyDirectory = (dir, alt) => cpy(
+    path.join(__dirname(import.meta), (alt || dir), "**"),
+    path.join(__dirname(import.meta), directoryName(dir))
+  );
 
-  const deleteDirectory = (dir) => import("del").then((del) => (
-    del.deleteAsync(path.join(__dirname(import.meta), directoryName(dir)))
-  ));
+  const deleteDirectory = (dir) =>
+    fs.rm(path.join(__dirname(import.meta), directoryName(dir)), { "recursive": true });
 
   testCase({
     "name": "no-arguments",