diff --git a/gulpfile.js b/gulpfile.mjs
similarity index 58%
rename from gulpfile.js
rename to gulpfile.mjs
index c510230..e564892 100644
--- a/gulpfile.js
+++ b/gulpfile.mjs
@@ -11,10 +11,10 @@
  * limitations under the License.
  */
 
-const gulp = require('gulp');
-const rename = require('gulp-rename');
-const cp = require('child_process');
-const fse = require('fs-extra');
+import { task, src, dest, series } from 'gulp';
+import rename from 'gulp-rename';
+import { execSync } from 'child_process';
+import { readFileSync, writeFileSync } from 'fs';
 
 const microprofileServerName = 'org.eclipse.lsp4mp.ls-uber.jar';
 const microprofileServerDir = '../lsp4mp/microprofile.ls/org.eclipse.lsp4mp.ls';
@@ -23,39 +23,39 @@ const microprofileExtensionDir = '../lsp4mp/microprofile.jdt';
 const microprofileExtension = 'org.eclipse.lsp4mp.jdt.core';
 const microprofileSite = 'org.eclipse.lsp4mp.jdt.site';
 
-gulp.task('buildServer', (done) => {
-  cp.execSync(mvnw() + ' clean install -B -DskipTests', { cwd: microprofileServerDir , stdio: 'inherit' });
-  gulp.src(microprofileServerDir + '/target/' + microprofileServerName, { encoding: false })
-    .pipe(gulp.dest('./server'));
+task('buildServer', (done) => {
+  execSync(mvnw() + ' clean install -B -DskipTests', { cwd: microprofileServerDir , stdio: 'inherit' });
+  src(microprofileServerDir + '/target/' + microprofileServerName, { encoding: false })
+    .pipe(dest('./server'));
   done();
 });
 
-gulp.task('buildExtension', (done) => {
-  cp.execSync(mvnw() + ' clean verify -B -DskipTests', { cwd: microprofileExtensionDir, stdio: 'inherit' });
-  gulp.src(microprofileExtensionDir + '/' + microprofileExtension + '/target/' + microprofileExtension + '-!(*sources).jar', { encoding: false })
+task('buildExtension', (done) => {
+  execSync(mvnw() + ' clean verify -B -DskipTests', { cwd: microprofileExtensionDir, stdio: 'inherit' });
+  src(microprofileExtensionDir + '/' + microprofileExtension + '/target/' + microprofileExtension + '-!(*sources).jar', { encoding: false })
     .pipe(rename(microprofileExtension + '.jar'))
-    .pipe(gulp.dest('./jars'));
-  gulp.src(microprofileExtensionDir + '/' + microprofileSite + '/target/repository/plugins/wrapped*.jar', { encoding: false })
-    .pipe(rename(function (path, _file) {
+    .pipe(dest('./jars'));
+  src(microprofileExtensionDir + '/' + microprofileSite + '/target/repository/plugins/wrapped*.jar', { encoding: false })
+    .pipe(rename(function (path) {
       const patt = /wrapped\.([^_]+).*/;
       const result = path.basename.match(patt);
       path.basename = result[1];
     }))
-    .pipe(gulp.dest('./jars'));
-  gulp.src(microprofileExtensionDir + '/' + microprofileSite + '/target/repository/plugins/org.jboss.logging*.jar', { encoding: false })
-    .pipe(rename(function (path, _file) {
+    .pipe(dest('./jars'));
+  src(microprofileExtensionDir + '/' + microprofileSite + '/target/repository/plugins/org.jboss.logging*.jar', { encoding: false })
+    .pipe(rename(function (path) {
       const patt = /([^_]+).*/;
       const result = path.basename.match(patt);
       path.basename = result[1];
     }))
-    .pipe(gulp.dest('./jars'));
+    .pipe(dest('./jars'));
   done();
 });
 
-gulp.task('build', gulp.series('buildServer', 'buildExtension'));
+task('build', series('buildServer', 'buildExtension'));
 
-gulp.task('prepare_pre_release', function (done) {
-  const json = JSON.parse(fse.readFileSync("./package.json").toString());
+task('prepare_pre_release', function (done) {
+  const json = JSON.parse(readFileSync("./package.json").toString());
   const stableVersion = json.version.match(/(\d+)\.(\d+)\.(\d+)/);
   const major = stableVersion[1];
   const minor = stableVersion[2];
@@ -67,7 +67,7 @@ gulp.task('prepare_pre_release', function (done) {
   const insiderPackageJson = Object.assign(json, {
     version: `${major}.${minor}.${patch}`,
   });
-  fse.writeFileSync("./package.json", JSON.stringify(insiderPackageJson, null, 2));
+  writeFileSync("./package.json", JSON.stringify(insiderPackageJson, null, 2));
   done();
 });
 
diff --git a/package-lock.json b/package-lock.json
index 25ac63f..d5f8c25 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -24,7 +24,6 @@
         "@vscode/test-electron": "^3.1.0",
         "eslint": "^10.8.1",
         "eslint-webpack-plugin": "^6.0.0",
-        "fs-extra": "^11.3.4",
         "gulp": "^5.0.1",
         "gulp-rename": "^2.1.0",
         "mocha": "^11.8.0",
@@ -2307,21 +2306,6 @@
         "url": "https://github.com/sponsors/isaacs"
       }
     },
-    "node_modules/fs-extra": {
-      "version": "11.4.0",
-      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-11.4.0.tgz",
-      "integrity": "sha512-EQsFzMUJkCKGr1ePqlYADkIUmHW1s3ZXr5Yqy6wbGrfUCphpl2maM/kyOIRA2HpP3AaFQTZXD4ldjek+nccddA==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "graceful-fs": "^4.2.0",
-        "jsonfile": "^6.0.1",
-        "universalify": "^2.0.0"
-      },
-      "engines": {
-        "node": ">=14.14"
-      }
-    },
     "node_modules/fs-mkdirp-stream": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/fs-mkdirp-stream/-/fs-mkdirp-stream-2.0.1.tgz",
@@ -3099,19 +3083,6 @@
       "integrity": "sha512-Bdboy+l7tA3OGW6FjyFHWkP5LuByj1Tk33Ljyq0axyzdk9//JSi2u3fP1QSmd1KNwq6VOKYGlAu87CisVir6Pw==",
       "dev": true
     },
-    "node_modules/jsonfile": {
-      "version": "6.2.1",
-      "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-6.2.1.tgz",
-      "integrity": "sha512-zwOTdL3rFQ/lRdBnntKVOX6k5cKJwEc1HdilT71BWEu7J41gXIB2MRp+vxduPSwZJPWBxEzv4yH1wYLJGUHX4Q==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "universalify": "^2.0.0"
-      },
-      "optionalDependencies": {
-        "graceful-fs": "^4.1.6"
-      }
-    },
     "node_modules/jszip": {
       "version": "3.10.1",
       "resolved": "https://registry.npmjs.org/jszip/-/jszip-3.10.1.tgz",
@@ -5110,16 +5081,6 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/universalify": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/universalify/-/universalify-2.0.1.tgz",
-      "integrity": "sha512-gptHNQghINnc/vTGIk0SOFGFNXw7JVrlRUtConJRlvaw6DuX0wO5Jeko9sWrMBhh+PsYAZ7oXAiOnf/UKogyiw==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">= 10.0.0"
-      }
-    },
     "node_modules/update-browserslist-db": {
       "version": "1.2.3",
       "resolved": "https://registry.npmjs.org/update-browserslist-db/-/update-browserslist-db-1.2.3.tgz",
diff --git a/package.json b/package.json
index 85726b2..22ea31f 100644
--- a/package.json
+++ b/package.json
@@ -303,7 +303,6 @@
     "@vscode/test-electron": "^3.1.0",
     "eslint": "^10.8.1",
     "eslint-webpack-plugin": "^6.0.0",
-    "fs-extra": "^11.3.4",
     "gulp": "^5.0.1",
     "gulp-rename": "^2.1.0",
     "mocha": "^11.8.0",