diff --git a/.eslintrc.json b/.eslintrc.json
index a93ac25b04..79b8cc6ff4 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -1,5 +1,6 @@
 {
   "env": {
+      "node":true,
       "browser": true,
       "es6": true
   },
diff --git a/.github/workflows/cypress.yml b/.github/workflows/cypress.yml
index dc0821acb0..601e59dcde 100644
--- a/.github/workflows/cypress.yml
+++ b/.github/workflows/cypress.yml
@@ -27,13 +27,13 @@ jobs:
     - run: npm run build
 
     - name: Run Keycloak
-      run: ./start.js & sleep 40
+      run: ./start.mjs & sleep 40
 
     - name: Run Admin Console
       run: npx http-server ./build -P http://localhost:8180/ & sleep 30
 
     - name: Admin Console client
-      run: ./import.js
+      run: ./import.mjs
 
     - name: Cypress run
       run: npm run start:cypress-tests
diff --git a/Dockerfile b/Dockerfile
index 02814bd567..a6a4138e29 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,7 +9,7 @@ WORKDIR /app
 COPY . .
 
 # replace Keycloak endpoints
-RUN sed -i "s/${DEFAULT_KEYCLOAK_ENDPOINT}/${KEYCLOAK_ENDPOINT}/g" import.js &&\
+RUN sed -i "s/${DEFAULT_KEYCLOAK_ENDPOINT}/${KEYCLOAK_ENDPOINT}/g" import.mjs &&\
     sed -i "s/${DEFAULT_KEYCLOAK_ENDPOINT}/${KEYCLOAK_ENDPOINT}/g" src/context/auth/keycloak.ts &&\
     sed -i "s/adminv2//g" snowpack.config.js
 
diff --git a/README.md b/README.md
index e15b6f61eb..a3a35a2b85 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ For development on this project you will need a running Keycloak server listenin
 1. Start keycloak
     * Download and run with one command
         ```bash
-        $> ./start.js
+        $> ./start.mjs
         ```
     * or download Keycloak server from [keycloak downloads page][2] unpack and run it like:
         ```bash
@@ -19,7 +19,7 @@ For development on this project you will need a running Keycloak server listenin
     * like this:
     ![realm settings](./realm-settings.png "Realm Settings")
     * or click on the "Select file" button and import `security-admin-console-v2.json`
-    * or run `$> ./import.js`
+    * or run `$> ./import.mjs`
 
 1. Install dependencies and run:
     ```bash
diff --git a/import.js b/import.js
deleted file mode 100755
index 274ce3a5db..0000000000
--- a/import.js
+++ /dev/null
@@ -1,23 +0,0 @@
-#!/usr/bin/env node
-const KcAdminClient = require('keycloak-admin').default;
-const consoleClientConfig = require("./security-admin-console-v2.json");
-
-
-const adminClient = new KcAdminClient({
-  baseUrl: "http://localhost:8180/auth",
-  realmName: 'master',
-});
-
-(async () => {
-  await adminClient.auth({
-    username: 'admin',
-    password: 'admin',
-    grantType: 'password',
-    clientId: 'admin-cli',
-  });
-
-  const adminConsoleClient = await adminClient.clients.find({clientId: "security-admin-console-v2"});
-  if (adminConsoleClient.length === 0) {
-    adminClient.clients.create(consoleClientConfig);
-  }
-})();
\ No newline at end of file
diff --git a/import.mjs b/import.mjs
new file mode 100755
index 0000000000..60ce409aad
--- /dev/null
+++ b/import.mjs
@@ -0,0 +1,27 @@
+#!/usr/bin/env node
+import { readFile } from "node:fs/promises";
+import KcAdminClient from "keycloak-admin";
+
+const consoleClientConfig = JSON.parse(
+  await readFile(new URL("./security-admin-console-v2.json", import.meta.url))
+);
+
+const adminClient = new KcAdminClient.default({
+  baseUrl: "http://localhost:8180/auth",
+  realmName: "master",
+});
+
+await adminClient.auth({
+  username: "admin",
+  password: "admin",
+  grantType: "password",
+  clientId: "admin-cli",
+});
+
+const adminConsoleClient = await adminClient.clients.find({
+  clientId: "security-admin-console-v2",
+});
+
+if (adminConsoleClient.length === 0) {
+  adminClient.clients.create(consoleClientConfig);
+}
diff --git a/package.json b/package.json
index 13164d849d..2ade787030 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
   },
   "scripts": {
     "build": "snowpack build",
-    "lint": "eslint \"./src/**/*.{js,jsx,ts,tsx}\"",
+    "lint": "eslint \"./src/**/*.{js,jsx,mjs,ts,tsx}\"",
     "postinstall": "grunt",
     "start": "snowpack dev",
     "test": "jest",
@@ -93,6 +93,6 @@
     "typescript": "4.2.4"
   },
   "lint-staged": {
-    "*.{js,jsx,ts,tsx}": "eslint --cache --fix"
+    "*.{js,jsx,mjs,ts,tsx}": "eslint --cache --fix"
   }
 }
diff --git a/start.js b/start.mjs
similarity index 68%
rename from start.js
rename to start.mjs
index 6efe015b79..7ac23df519 100755
--- a/start.js
+++ b/start.mjs
@@ -1,11 +1,11 @@
 #!/usr/bin/env node
-const http = require("https");
-const fs = require("fs");
-const path = require("path");
-const { spawn } = require("child_process");
+import http from "node:https";
+import fs from "node:fs";
+import path from "node:path";
+import { spawn } from "node:child_process";
 
-const decompress = require("decompress");
-const decompressTargz = require("decompress-targz");
+import decompress from "decompress";
+import decompressTargz from "decompress-targz";
 
 const args = process.argv.slice(2);
 const version = args[0] || "12.0.1";
@@ -19,19 +19,24 @@ if (!fs.existsSync(folder)) {
   fs.mkdirSync(folder);
 }
 
-const decompressKeycloak = () =>
-  decompress(fileName, folder, {
-    plugins: [decompressTargz()],
-  })
-    .then(() => {
-      console.log("Files decompressed");
-    })
-    .catch((e) => console.error(e));
+async function decompressKeycloak() {
+  try {
+    await decompress(fileName, folder, {
+      plugins: [decompressTargz()],
+    });
+
+    console.log("Files decompressed");
+  } catch (error) {
+    console.error(error);
+  }
+}
+
 const run = () => {
-  const addProc = spawn(path.join(serverPath, "bin", `add-user-keycloak${extension}`), [
-    "--user", "admin",
-    "--password", "admin"
-  ]);
+  const addProc = spawn(
+    path.join(serverPath, "bin", `add-user-keycloak${extension}`),
+    ["--user", "admin", "--password", "admin"]
+  );
+
   addProc.on("exit", () => {
     const proc = spawn(path.join(serverPath, "bin", `standalone${extension}`), [
       "-Djboss.socket.binding.port-offset=100",