diff --git a/client/helpers/confirmationDialog.js b/client/helpers/confirmationDialog.js
index c94f69eaf..32bb4a03d 100644
--- a/client/helpers/confirmationDialog.js
+++ b/client/helpers/confirmationDialog.js
@@ -1,4 +1,4 @@
-import { _ } from "lodash";
+import { assignIn } from "lodash";
 import { Blaze } from "meteor/blaze";
 import { Template } from "meteor/templating";
 import { i18n } from "meteor/universe:i18n";
@@ -7,7 +7,7 @@ const DIALOG_TEMPLATE = Template.confirmationDialog;
 
 export class ConfirmationDialog {
   constructor(options, callbacks = {}) {
-    this.options = _.assignIn(
+    this.options = assignIn(
       {
         title: i18n.__("Dialog.ConfirmDelete.title"),
         content: i18n.__("Dialog.ConfirmDelete.body"),
@@ -19,7 +19,7 @@ export class ConfirmationDialog {
       },
       options,
     ); // overwrite above defaults with given options
-    this.callback = _.assignIn(
+    this.callback = assignIn(
       {
         onSuccess() {},
       },
diff --git a/client/templates/topic/topicEdit.js b/client/templates/topic/topicEdit.js
index 1a1931a21..a0712638b 100644
--- a/client/templates/topic/topicEdit.js
+++ b/client/templates/topic/topicEdit.js
@@ -4,7 +4,7 @@ import { configureSelect2Responsibles } from "/imports/client/ResponsibleSearch"
 import { MeetingSeries } from "/imports/meetingseries";
 import { Minutes } from "/imports/minutes";
 import { Topic } from "/imports/topic";
-import { _ } from "lodash";
+import { assignIn } from "lodash";
 import { $ } from "meteor/jquery";
 import { Meteor } from "meteor/meteor";
 import { Session } from "meteor/session";
@@ -66,7 +66,7 @@ Template.topicEdit.events({
       const editTopic = getEditTopic();
       const topicDoc = {};
       if (editTopic) {
-        _.extend(topicDoc, editTopic._topicDoc);
+        assignIn(topicDoc, editTopic._topicDoc);
       }
 
       let labels = tmpl.$("#id_item_selLabels").val();
diff --git a/client/templates/topic/topicInfoItemEdit.js b/client/templates/topic/topicInfoItemEdit.js
index d30c614d4..1942d70ec 100644
--- a/client/templates/topic/topicInfoItemEdit.js
+++ b/client/templates/topic/topicInfoItemEdit.js
@@ -7,7 +7,7 @@ import { Minutes } from "/imports/minutes";
 import { Priority } from "/imports/priority";
 import { Topic } from "/imports/topic";
 import { User, userSettings } from "/imports/user";
-import { _ } from "lodash";
+import { assignIn } from "lodash";
 import { Meteor } from "meteor/meteor";
 import { ReactiveDict } from "meteor/reactive-dict";
 import { ReactiveVar } from "meteor/reactive-var";
@@ -214,7 +214,7 @@ Template.topicInfoItemEdit.events({
 
       const doc = {};
       if (editItem) {
-        _.assignIn(doc, editItem._infoItemDoc);
+        assignIn(doc, editItem._infoItemDoc);
       }
 
       doc.subject = newSubject;
diff --git a/imports/attachment.js b/imports/attachment.js
index daa161283..938bc8045 100644
--- a/imports/attachment.js
+++ b/imports/attachment.js
@@ -1,4 +1,4 @@
-import { _ } from "lodash";
+import { assignIn } from "lodash";
 
 import { AttachmentsCollection } from "./collections/attachments_private";
 import { Minutes } from "./minutes";
@@ -42,7 +42,7 @@ export class Attachment {
 
   static uploadFile(uploadFilename, minutesObj, callbacks = {}) {
     const doNothing = () => {};
-    callbacks = _.assignIn(
+    callbacks = assignIn(
       {
         onStart: doNothing,
         onEnd: doNothing,
diff --git a/imports/ldap/import.js b/imports/ldap/import.js
index 3ef6d8e53..5a9d2b34a 100644
--- a/imports/ldap/import.js
+++ b/imports/ldap/import.js
@@ -1,9 +1,9 @@
-let getLDAPUsers = require("./getLDAPUsers"),
-  saveUsers = require("./saveUsers");
+import getLDAPUsers from "./getLDAPUsers";
+import saveUsers from "./saveUsers";
 
 const report = (bulkResult) => {
-  let inserted = bulkResult.nUpserted,
-    updated = bulkResult.nModified;
+  const inserted = bulkResult.nUpserted;
+  const updated = bulkResult.nModified;
 
   console.log(
     `Successfully inserted ${inserted} users and updated ${updated} users.`,
@@ -55,4 +55,4 @@ const importUsers = (ldapSettings, mongoUrl) =>
     .then(resetSelfSigned)
     .catch(handleRejection);
 
-module.exports = importUsers;
+export default importUsers;
diff --git a/imports/ldap/saveUsers.js b/imports/ldap/saveUsers.js
index 2dc894834..fe71a10a8 100644
--- a/imports/ldap/saveUsers.js
+++ b/imports/ldap/saveUsers.js
@@ -1,8 +1,9 @@
 import { MongoClient as mongo } from "mongodb";
 import { parse } from "mongo-uri";
 import transformUser from "./transformUser";
+
 import { map, forEach } from "lodash";
-import { Random } from "../../tests/performance/fixtures/lib/random";
+import { generateId } from "../../tests/performance/fixtures/lib/random";
 
 const _transformUsers = (settings, users) =>
   map(users, (user) => transformUser(settings, user));
@@ -41,7 +42,7 @@ const _insertUsers = (client, mongoUri, users) => {
             .upsert()
             .updateOne({
               $setOnInsert: {
-                _id: Random.generateId(),
+                _id: generateId(),
                 // by setting this only on insert we won't log out everyone
                 // everytime we sync the users
                 services: {
@@ -68,9 +69,9 @@ const _insertUsers = (client, mongoUri, users) => {
 };
 
 const _closeMongo = (data) => {
-  let force = false,
-    client = data.client,
-    result = data.bulkResult;
+  const force = false;
+  const client = data.client;
+  const result = data.bulkResult;
 
   return new Promise((resolve) => {
     client.close(force);
diff --git a/imports/ldap/transformUser.js b/imports/ldap/transformUser.js
index f6599be4e..082039b7e 100644
--- a/imports/ldap/transformUser.js
+++ b/imports/ldap/transformUser.js
@@ -1,11 +1,19 @@
-import { pick, without } from "lodash";
+import { pick } from "lodash";
 
+/**
+ * Filters an array and returns a new array without the specified values.
+ *
+ * @param {Array} arr - The array to filter.
+ * @param {...*} args - The values to exclude from the filtered array.
+ * @returns {Array} - A new array with the values excluded.
+ */
+const without = (arr, ...args) => arr.filter(item => !args.includes(item))
 export default (ldapSettings, userData) => {
   ldapSettings.propertyMap = ldapSettings.propertyMap || {};
   const usernameAttribute =
-      ldapSettings.searchDn || ldapSettings.propertyMap.username || "cn",
-    longnameAttribute = ldapSettings.propertyMap.longname,
-    mailAttribute = ldapSettings.propertyMap.email || "mail";
+  ldapSettings.searchDn || ldapSettings.propertyMap.username || "cn";
+  const longnameAttribute = ldapSettings.propertyMap.longname;
+  const mailAttribute = ldapSettings.propertyMap.email || "mail";
 
   // userData.mail may be a string with one mail address or an array.
   // Nevertheless we are only interested in the first mail address here - if
diff --git a/programs/generateLicenseList.js b/programs/generateLicenseList.js
index b2b3ee349..f4187d09d 100644
--- a/programs/generateLicenseList.js
+++ b/programs/generateLicenseList.js
@@ -1,7 +1,7 @@
-const crawler = require("npm-license-crawler"),
-  http = require("http"),
-  https = require("https"),
-  fs = require("fs");
+import { dumpLicenses } from "npm-license-crawler";
+import { get as _get } from "http";
+import { get as __get } from "https";
+import { createWriteStream } from "fs";
 
 const meteorPackages = {
   meteor: {
@@ -107,9 +107,9 @@ const meteorPackages = {
 
 function get(url, callback) {
   if (url.startsWith("https")) {
-    https.get(url, callback);
+    __get(url, callback);
   } else {
-    http.get(url, callback);
+    _get(url, callback);
   }
 }
 
@@ -169,11 +169,11 @@ function streamCollector(streams, index, outStream) {
           outStream.write(`\n\n${licenseSeparator}\n\n`);
           streamCollector(streams, index + 1, outStream);
         });
-      } else {
-        console.log(`NO LICENSE TEXT FOUND FOR ${project}`);
-        outStream.write(`\n\n${licenseSeparator}\n\n`);
-        streamCollector(streams, index + 1, outStream);
+        return;
       }
+      console.log(`NO LICENSE TEXT FOUND FOR ${project}`);
+      outStream.write(`\n\n${licenseSeparator}\n\n`);
+      streamCollector(streams, index + 1, outStream);
     })
     .catch(console.error);
 }
@@ -185,13 +185,13 @@ function getSortedKeys(obj) {
   return keys.sort((a, b) => obj[b] - obj[a]);
 }
 
-crawler.dumpLicenses({ start: ["."] }, (error, res) => {
+dumpLicenses({ start: ["."] }, (error, res) => {
   if (error) {
     console.error("Error:", error);
     return;
   }
 
-  const output = fs.createWriteStream("LicensesOfDependencies.txt");
+  const output = createWriteStream("LicensesOfDependencies.txt");
   const streams = Object.keys(res).map((project) =>
     downloadToStream(project, res[project].licenseUrl, res[project].licenses),
   );