diff --git a/src/cli/init-config/build-config.cjs b/src/cli/init-config/build-config.mjs
similarity index 75%
rename from src/cli/init-config/build-config.cjs
rename to src/cli/init-config/build-config.mjs
index 36114065e..f7d2167be 100644
--- a/src/cli/init-config/build-config.cjs
+++ b/src/cli/init-config/build-config.mjs
@@ -1,9 +1,9 @@
 // @ts-check
-const Handlebars = require("handlebars/runtime");
-const { folderNameArrayToRE } = require("./utl.cjs");
+import Handlebars from "handlebars/runtime.js";
+import { folderNameArrayToRE } from "./utl.mjs";
 
 /* eslint import/no-unassigned-import: 0 */
-require("./config.js.template");
+await import("./config.js.template.js");
 
 /**
  * @param {string} pString
@@ -28,12 +28,12 @@ function extensionsToString(pExtensions) {
  * Creates a .dependency-cruiser config with a set of basic validations
  * to the current directory.
  *
- * @param {import("./types").IInitConfig} pNormalizedInitOptions Options that influence the shape of
+ * @param {import("./types.js").IInitConfig} pNormalizedInitOptions Options that influence the shape of
  *                  the configuration
  * @returns {string} the configuration as a string
  */
 
-module.exports = function buildConfig(pNormalizedInitOptions) {
+export default function buildConfig(pNormalizedInitOptions) {
   return Handlebars.templates["config.js.template.hbs"]({
     ...pNormalizedInitOptions,
 
@@ -45,4 +45,4 @@ module.exports = function buildConfig(pNormalizedInitOptions) {
       pNormalizedInitOptions.resolutionExtensions
     ),
   });
-};
+}
diff --git a/src/cli/init-config/index.mjs b/src/cli/init-config/index.mjs
index adb51f88a..16ff98969 100644
--- a/src/cli/init-config/index.mjs
+++ b/src/cli/init-config/index.mjs
@@ -1,7 +1,7 @@
 // @ts-check
 import { PACKAGE_MANIFEST as _PACKAGE_MANIFEST } from "../defaults.mjs";
 import normalizeInitOptions from "./normalize-init-options.mjs";
-import buildConfig from "./build-config.cjs";
+import buildConfig from "./build-config.mjs";
 import writeConfig from "./write-config.mjs";
 import getUserInput from "./get-user-input.mjs";
 import {
diff --git a/src/cli/init-config/utl.cjs b/src/cli/init-config/utl.cjs
deleted file mode 100644
index 2757d586f..000000000
--- a/src/cli/init-config/utl.cjs
+++ /dev/null
@@ -1,6 +0,0 @@
-function folderNameArrayToRE(pArrayOfStrings) {
-  return `^(${pArrayOfStrings.join("|")})`;
-}
-module.exports = {
-  folderNameArrayToRE,
-};
diff --git a/src/cli/init-config/utl.mjs b/src/cli/init-config/utl.mjs
new file mode 100644
index 000000000..96212f550
--- /dev/null
+++ b/src/cli/init-config/utl.mjs
@@ -0,0 +1,3 @@
+export function folderNameArrayToRE(pArrayOfStrings) {
+  return `^(${pArrayOfStrings.join("|")})`;
+}
diff --git a/src/cli/init-config/write-run-scripts-to-manifest.mjs b/src/cli/init-config/write-run-scripts-to-manifest.mjs
index 4faeec308..341742eea 100644
--- a/src/cli/init-config/write-run-scripts-to-manifest.mjs
+++ b/src/cli/init-config/write-run-scripts-to-manifest.mjs
@@ -6,7 +6,7 @@ import chalk from "chalk";
 import wrapAndIndent from "../../utl/wrap-and-indent.mjs";
 import { PACKAGE_MANIFEST as _PACKAGE_MANIFEST } from "../defaults.mjs";
 import { readManifest } from "./environment-helpers.mjs";
-import { folderNameArrayToRE } from "./utl.cjs";
+import { folderNameArrayToRE } from "./utl.mjs";
 
 const PACKAGE_MANIFEST = `./${_PACKAGE_MANIFEST}`;
 
diff --git a/test/cli/init-config/create-config.spec.mjs b/test/cli/init-config/create-config.spec.mjs
index 5eca8a2e8..3e7199f8c 100644
--- a/test/cli/init-config/create-config.spec.mjs
+++ b/test/cli/init-config/create-config.spec.mjs
@@ -3,7 +3,7 @@ import { tmpdir } from "node:os";
 import { join } from "node:path/posix";
 import { expect, use } from "chai";
 import chaiJsonSchema from "chai-json-schema";
-import buildConfig from "../../../src/cli/init-config/build-config.cjs";
+import buildConfig from "../../../src/cli/init-config/build-config.mjs";
 import normalizeInitOptions from "../../../src/cli/init-config/normalize-init-options.mjs";
 import configurationSchema from "../../../src/schema/configuration.schema.mjs";
 import deleteDammit from "../delete-dammit.utl.cjs";
diff --git a/test/cli/init-config/utl.spec.mjs b/test/cli/init-config/utl.spec.mjs
index 161d6b43d..d8bc92aad 100644
--- a/test/cli/init-config/utl.spec.mjs
+++ b/test/cli/init-config/utl.spec.mjs
@@ -1,15 +1,15 @@
 import { expect } from "chai";
-import utl from "../../../src/cli/init-config/utl.cjs";
+import { folderNameArrayToRE } from "../../../src/cli/init-config/utl.mjs";
 
 describe("[U] cli/init-config/utl - folderNameArrayToRE", () => {
   it("transforms an array of folder names into a regex string - empty", () => {
-    expect(utl.folderNameArrayToRE([])).to.equal("^()");
+    expect(folderNameArrayToRE([])).to.equal("^()");
   });
   it("transforms an array of folder names into a regex string - one entry", () => {
-    expect(utl.folderNameArrayToRE(["src"])).to.equal("^(src)");
+    expect(folderNameArrayToRE(["src"])).to.equal("^(src)");
   });
   it("transforms an array of folder names into a regex string - more than one entry", () => {
-    expect(utl.folderNameArrayToRE(["bin", "src", "lib"])).to.equal(
+    expect(folderNameArrayToRE(["bin", "src", "lib"])).to.equal(
       "^(bin|src|lib)"
     );
   });