diff --git a/@types/cwordin-api.d.ts b/@types/cwordin-api.d.ts
new file mode 100644
index 0000000..0ebb860
--- /dev/null
+++ b/@types/cwordin-api.d.ts
@@ -0,0 +1,102 @@
+declare module 'crowdin-api' {
+  export interface ProjectInfoFile {
+    node_type: 'file';
+    id: number;
+    name: string;
+    created: string;
+    last_updated: string;
+    last_accessed: string;
+    last_revision: string;
+  }
+
+  export interface ProjectInfoDirectory {
+    node_type: 'directory';
+    id: number;
+    name: string;
+    files: Array<ProjectInfoFile | ProjectInfoDirectory>;
+  }
+
+  export interface ProjectInfoResponse {
+    details: {
+      source_language: {
+        name: string;
+        code: string;
+      };
+      name: string;
+      identifier: string;
+      created: string;
+      description: string;
+      join_policy: string;
+      last_build: string | null;
+      last_activity: string;
+      participants_count: string; // it's number, but string in the response
+      logo_url: string | null;
+      total_strings_count: string; // it's number, but string in the response
+      total_words_count: string; // it's number, but string in the response
+      duplicate_strings_count: number;
+      duplicate_words_count: number;
+      invite_url: {
+        translator: string;
+        proofreader: string;
+      };
+    };
+    languages: Array<{
+      name: string; // English language name
+      code: string;
+      can_translate: 0 | 1;
+      can_approve: 0 | 1;
+    }>;
+    files: Array<ProjectInfoFile | ProjectInfoDirectory>;
+  }
+
+  export interface LanguageStatusNode {
+    node_type: 'directory' | 'file';
+    id: number;
+    name: string;
+    phrases: number;
+    translated: number;
+    approved: number;
+    words: number;
+    words_translated: number;
+    words_approved: number;
+    files: Array<LanguageStatusNode>;
+  }
+
+  export interface LanguageStatusResponse {
+    files: Array<LanguageStatusNode>;
+  }
+
+  type FilesList = Record<string, string | ReadableStream>;
+
+  export default class CrowdinApi {
+    constructor(params: {
+      apiKey: string;
+      projectName: string;
+      baseUrl?: string;
+    });
+    projectInfo(): Promise<ProjectInfoResponse>;
+    languageStatus(language: string): Promise<LanguageStatusResponse>;
+    exportFile(
+      file: string,
+      language: string,
+      params?: {
+        branch?: string;
+        format?: 'xliff';
+        export_translated_only?: boolean;
+        export_approved_only?: boolean;
+      },
+    ): Promise<string>; // TODO: not sure about Promise return type
+    updateFile(
+      files: FilesList,
+      params: {
+        titles?: Record<string, string>;
+        export_patterns?: Record<string, string>;
+        new_names?: Record<string, string>;
+        first_line_contains_header?: string;
+        scheme?: string;
+        update_option?: 'update_as_unapproved' | 'update_without_changes';
+        branch?: string;
+      },
+    ): Promise<void>;
+  }
+}
diff --git a/@types/multi-progress.d.ts b/@types/multi-progress.d.ts
new file mode 100644
index 0000000..b3ab5e5
--- /dev/null
+++ b/@types/multi-progress.d.ts
@@ -0,0 +1,13 @@
+declare module 'multi-progress' {
+  export default class MultiProgress {
+    constructor(stream?: string);
+    newBar(
+      schema: string,
+      options: ProgressBar.ProgressBarOptions,
+    ): ProgressBar;
+    terminate(): void;
+    move(index: number): void;
+    tick(index: number, value?: number, options?: any): void;
+    update(index: number, value?: number, options?: any): void;
+  }
+}
diff --git a/@types/prompt.d.ts b/@types/prompt.d.ts
new file mode 100644
index 0000000..83bd868
--- /dev/null
+++ b/@types/prompt.d.ts
@@ -0,0 +1,66 @@
+// Type definitions for Prompt.js 1.0.0
+// Project: https://github.com/flatiron/prompt
+
+declare module 'prompt' {
+  type PropertiesType =
+    | Array<string>
+    | prompt.PromptSchema
+    | Array<prompt.PromptPropertyOptions>;
+
+  namespace prompt {
+    interface PromptSchema {
+      properties: PromptProperties;
+    }
+
+    interface PromptProperties {
+      [propName: string]: PromptPropertyOptions;
+    }
+
+    interface PromptPropertyOptions {
+      name?: string;
+      pattern?: RegExp;
+      message?: string;
+      required?: boolean;
+      hidden?: boolean;
+      description?: string;
+      type?: string;
+      default?: string;
+      before?: (value: any) => any;
+      conform?: (result: any) => boolean;
+    }
+
+    export function start(): void;
+
+    export function get<T extends PropertiesType>(
+      properties: T,
+      callback: (
+        err: Error,
+        result: T extends Array<string>
+          ? Record<T[number], string>
+          : T extends PromptSchema
+          ? Record<keyof T['properties'], string>
+          : T extends Array<PromptPropertyOptions>
+          ? Record<
+              T[number]['name'] extends string ? T[number]['name'] : number,
+              string
+            >
+          : never,
+      ) => void,
+    ): void;
+
+    export function addProperties(
+      obj: any,
+      properties: PropertiesType,
+      callback: (err: Error) => void,
+    ): void;
+
+    export function history(propertyName: string): any;
+
+    export let override: any;
+    export let colors: boolean;
+    export let message: string;
+    export let delimiter: string;
+  }
+
+  export = prompt;
+}
diff --git a/package.json b/package.json
index 10e15d9..e6960cc 100644
--- a/package.json
+++ b/package.json
@@ -35,9 +35,9 @@
     "ts:check": "tsc",
     "ci:check": "yarn lint:check && yarn ts:check && yarn test",
     "analyze": "yarn run clean && yarn run build:webpack --analyze",
-    "i18n:collect": "babel-node ./packages/scripts/i18n-collect.js",
-    "i18n:push": "babel-node ./packages/scripts/i18n-crowdin.js push",
-    "i18n:pull": "babel-node ./packages/scripts/i18n-crowdin.js pull",
+    "i18n:collect": "babel-node --extensions \".ts\" ./packages/scripts/i18n-collect.ts",
+    "i18n:push": "babel-node --extensions \".ts\" ./packages/scripts/i18n-crowdin.ts push",
+    "i18n:pull": "babel-node --extensions \".ts\" ./packages/scripts/i18n-crowdin.ts pull",
     "build": "yarn run clean && yarn run build:webpack",
     "build:install": "yarn install",
     "build:webpack": "NODE_ENV=production webpack --colors -p --bail",
diff --git a/packages/app/package.json b/packages/app/package.json
index b1d408f..6a2e9c4 100644
--- a/packages/app/package.json
+++ b/packages/app/package.json
@@ -35,6 +35,9 @@
     "whatwg-fetch": "^3.0.0"
   },
   "devDependencies": {
+    "@types/debounce": "^1.2.0",
+    "@types/intl": "^1.2.0",
+    "@types/raf": "^3.4.0",
     "@types/react-helmet": "^5.0.15",
     "@types/webpack-env": "^1.15.0",
     "enzyme": "^3.8.0",
diff --git a/packages/app/services/captcha.ts b/packages/app/services/captcha.ts
index f160be3..b9cc450 100644
--- a/packages/app/services/captcha.ts
+++ b/packages/app/services/captcha.ts
@@ -3,7 +3,7 @@ import options from 'app/services/api/options';
 
 let readyPromise: Promise<void>;
 let lang = 'en';
-let sitekey;
+let sitekey: string;
 
 export type CaptchaID = string;
 
diff --git a/packages/app/services/localStorage.js b/packages/app/services/localStorage.ts
similarity index 79%
rename from packages/app/services/localStorage.js
rename to packages/app/services/localStorage.ts
index dc60659..faa8a89 100644
--- a/packages/app/services/localStorage.js
+++ b/packages/app/services/localStorage.ts
@@ -17,16 +17,17 @@ export function hasStorage() {
   return _hasStorage;
 }
 
-class DummyStorage {
-  getItem(key) {
+// TODO: work on
+class DummyStorage implements Storage {
+  getItem(key: string): string | null {
     return this[key] || null;
   }
 
-  setItem(key, value) {
+  setItem(key: string, value: string): void {
     this[key] = value;
   }
 
-  removeItem(key) {
+  removeItem(key: string): void {
     Reflect.deleteProperty(this, key);
   }
 }
diff --git a/packages/scripts/i18n-collect.ts b/packages/scripts/i18n-collect.ts
index 50579b8..7cf6815 100644
--- a/packages/scripts/i18n-collect.ts
+++ b/packages/scripts/i18n-collect.ts
@@ -12,19 +12,27 @@ const LANG_DIR = `${__dirname}/../app/i18n`;
 const DEFAULT_LOCALE = 'en';
 const SUPPORTED_LANGS = [DEFAULT_LOCALE, ...Object.keys(localesMap)];
 
+interface MessageDescriptor {
+  id: string | number;
+  defaultMessage: string;
+}
+
 /**
  * Aggregates the default messages that were extracted from the app's
  * React components via the React Intl Babel plugin. An error will be thrown if
  * there are messages in different components that use the same `id`. The result
  * is a flat collection of `id: message` pairs for the app's default locale.
  */
-let idToFileMap: { [key: string]: string[] } = {};
-let duplicateIds: string[] = [];
+let idToFileMap: Record<string, Array<string>> = {};
+let duplicateIds: Array<string | number> = [];
 const collectedMessages = globSync(MESSAGES_PATTERN)
-  .map(filename => [filename, JSON.parse(fs.readFileSync(filename, 'utf8'))])
-  .reduce((collection, [file, descriptors]) => {
+  .map<[string, Array<MessageDescriptor>]>(filename => [
+    filename,
+    JSON.parse(fs.readFileSync(filename, 'utf8')),
+  ])
+  .reduce<Record<string, string>>((collection, [file, descriptors]) => {
     descriptors.forEach(({ id, defaultMessage }) => {
-      if (collection.hasOwnProperty(id)) {
+      if (collection[id]) {
         duplicateIds.push(id);
       }
 
@@ -52,13 +60,9 @@ idToFileMap = {};
  * Making a diff with the previous DEFAULT_LOCALE version
  */
 const defaultMessagesPath = `${LANG_DIR}/${DEFAULT_LOCALE}.json`;
-let keysToUpdate: string[] = [];
-let keysToAdd: string[] = [];
-let keysToRemove: string[] = [];
-const keysToRename: Array<[string, string]> = [];
 const isNotMarked = (value: string) => value.slice(0, 2) !== '--';
 
-const prevMessages: { [key: string]: string } = readJSON(defaultMessagesPath);
+const prevMessages = readJSON<Record<string, string>>(defaultMessagesPath);
 const prevMessagesMap = Object.entries(prevMessages).reduce(
   (acc, [key, value]) => {
     if (acc[value]) {
@@ -69,21 +73,24 @@ const prevMessagesMap = Object.entries(prevMessages).reduce(
 
     return acc;
   },
-  {} as { [key: string]: string[] },
+  {} as Record<string, Array<string>>,
 );
 
-keysToAdd = Object.keys(collectedMessages).filter(key => !prevMessages[key]);
-keysToRemove = Object.keys(prevMessages)
+const keysToAdd = Object.keys(collectedMessages).filter(
+  key => !prevMessages[key],
+);
+const keysToRemove: Array<string> = Object.keys(prevMessages)
   .filter(key => !collectedMessages[key])
   .filter(isNotMarked);
-keysToUpdate = Object.entries(prevMessages).reduce(
+const keysToUpdate: Array<string> = Object.entries(prevMessages).reduce(
   (acc, [key, message]) =>
     acc.concat(
       collectedMessages[key] && collectedMessages[key] !== message ? key : [],
     ),
-  [] as string[],
+  [] as Array<string>,
 );
 
+const keysToRename: Array<[string, string]> = [];
 // detect keys to rename, mutating keysToAdd and keysToRemove
 [...keysToAdd].forEach(toKey => {
   const keys = prevMessagesMap[collectedMessages[toKey]] || [];
@@ -91,7 +98,6 @@ keysToUpdate = Object.entries(prevMessages).reduce(
 
   if (fromKey) {
     keysToRename.push([fromKey, toKey]);
-
     keysToRemove.splice(keysToRemove.indexOf(fromKey), 1);
     keysToAdd.splice(keysToAdd.indexOf(toKey), 1);
   }
@@ -178,7 +184,7 @@ function buildLocales() {
 
   SUPPORTED_LANGS.map(lang => {
     const destPath = `${LANG_DIR}/${lang}.json`;
-    const newMessages = readJSON(destPath);
+    const newMessages = readJSON<Record<string, string>>(destPath);
 
     keysToRename.forEach(([fromKey, toKey]) => {
       newMessages[toKey] = newMessages[fromKey];
@@ -195,18 +201,23 @@ function buildLocales() {
       newMessages[key] = collectedMessages[key];
     });
 
-    const sortedKeys = Object.keys(newMessages).sort((key1, key2) => {
-      key1 = key1.replace(/^-+/, '');
-      key2 = key2.replace(/^-+/, '');
+    const sortedKeys: Array<string> = Object.keys(newMessages).sort(
+      (key1, key2) => {
+        key1 = key1.replace(/^-+/, '');
+        key2 = key2.replace(/^-+/, '');
 
-      return key1 < key2 || !isNotMarked(key1) ? -1 : 1;
-    });
+        return key1 < key2 || !isNotMarked(key1) ? -1 : 1;
+      },
+    );
 
-    const sortedNewMessages = sortedKeys.reduce((acc, key) => {
-      acc[key] = newMessages[key];
+    const sortedNewMessages = sortedKeys.reduce<typeof newMessages>(
+      (acc, key) => {
+        acc[key] = newMessages[key];
 
-      return acc;
-    }, {});
+        return acc;
+      },
+      {},
+    );
 
     fs.writeFileSync(
       destPath,
@@ -215,15 +226,15 @@ function buildLocales() {
   });
 }
 
-function readJSON(destPath) {
+function readJSON<T extends {}>(destPath: string): T {
   try {
     return JSON.parse(fs.readFileSync(destPath, 'utf8'));
   } catch (err) {
     console.log(
-      chalk.yellow(`Can not read ${destPath}. The new file will be created.`),
+      chalk.yellow(`Can't read ${destPath}. The new file will be created.`),
       `(${err.message})`,
     );
   }
 
-  return {};
+  return {} as T;
 }
diff --git a/packages/scripts/i18n-crowdin.ts b/packages/scripts/i18n-crowdin.ts
index 928f842..a8c8f9b 100644
--- a/packages/scripts/i18n-crowdin.ts
+++ b/packages/scripts/i18n-crowdin.ts
@@ -1,14 +1,16 @@
 /* eslint-env node */
-/* eslint-disable no-console */
+/* eslint-disable */
 
 import fs from 'fs';
 import path from 'path';
-import CrowdinApi from 'crowdin-api';
+import CrowdinApi, { LanguageStatusNode, LanguageStatusResponse, ProjectInfoResponse } from 'crowdin-api';
 import MultiProgress from 'multi-progress';
 import ch from 'chalk';
 import iso639 from 'iso-639-1';
 import prompt from 'prompt';
 
+import { ValuesType } from 'utility-types';
+
 import config from '../../config';
 
 if (!config.crowdinApiKey) {
@@ -24,18 +26,21 @@ const LANG_DIR = path.resolve(`${__dirname}/../app/i18n`);
 const INDEX_FILE_NAME = 'index.js';
 const MIN_RELEASE_PROGRESS = 80; // Minimal ready percent before translation can be published
 
-const crowdin = new CrowdinApi({ apiKey: PROJECT_KEY });
+const crowdin = new CrowdinApi({
+  apiKey: PROJECT_KEY,
+  projectName: PROJECT_ID,
+});
 const progressBar = new MultiProgress();
 
 /**
  * Locales that has been verified by core team members
  */
-const RELEASED_LOCALES = ['be', 'fr', 'id', 'pt', 'ru', 'uk', 'vi', 'zh'];
+const RELEASED_LOCALES: Array<string> = ['be', 'fr', 'id', 'pt', 'ru', 'uk', 'vi', 'zh'];
 
 /**
  * Array of Crowdin locales to our internal locales representation
  */
-const LOCALES_MAP = {
+const LOCALES_MAP: Record<string, string> = {
   'pt-BR': 'pt',
   'zh-CN': 'zh',
 };
@@ -43,7 +48,7 @@ const LOCALES_MAP = {
 /**
  * This array allows us to customise native languages names, because ISO-639-1 sometimes is strange
  */
-const NATIVE_NAMES_MAP = {
+const NATIVE_NAMES_MAP: Record<string, string> = {
   be: 'Беларуская',
   id: 'Bahasa Indonesia',
   lt: 'Lietuvių',
@@ -57,7 +62,7 @@ const NATIVE_NAMES_MAP = {
 /**
  * This arrays allows us to override Crowdin English languages names
  */
-const ENGLISH_NAMES_MAP = {
+const ENGLISH_NAMES_MAP: Record<string, string> = {
   pt: 'Portuguese, Brazilian',
   sr: 'Serbian',
   zh: 'Simplified Chinese',
@@ -65,9 +70,6 @@ const ENGLISH_NAMES_MAP = {
 
 /**
  * Converts Crowdin's language code to our internal value
- *
- * @param {string} code
- * @returns {string}
  */
 function toInternalLocale(code: string): string {
   return LOCALES_MAP[code] || code;
@@ -76,108 +78,33 @@ function toInternalLocale(code: string): string {
 /**
  * Форматирует входящий объект с переводами в итоговую строку в том формате, в каком они
  * хранятся в самом приложении
- *
- * @param {object} translates
- * @returns {string}
  */
-function serializeToFormattedJson(
-  translates: { [key: string]: any },
-  { asModule = false }: { asModule?: boolean } = {},
-): string {
+function serializeToModule(translates: Record<string, any>): string {
   const src = JSON.stringify(sortByKeys(translates), null, 2);
 
-  return asModule ? `module.exports = ${src};\n` : `${src}\n`;
+  return `module.exports = ${src};\n`;
 }
 
-/**
- * http://stackoverflow.com/a/29622653/5184751
- *
- * @param {object} object
- * @returns {object}
- */
-function sortByKeys(object: { [key: string]: any }): { [key: string]: any } {
+// http://stackoverflow.com/a/29622653/5184751
+function sortByKeys<T extends Record<string, any>>(object: T): T {
   return Object.keys(object)
     .sort()
     .reduce((result, key) => {
+      // @ts-ignore
       result[key] = object[key];
 
       return result;
-    }, {});
+    }, {} as T);
 }
 
-interface ProjectInfoFile {
-  node_type: 'file';
-  id: number;
-  name: string;
-  created: string;
-  last_updated: string;
-  last_accessed: string;
-  last_revision: string;
-}
-
-interface ProjectInfoDirectory {
-  node_type: 'directory';
-  id: number;
-  name: string;
-  files: Array<ProjectInfoFile | ProjectInfoDirectory>;
-}
-
-interface ProjectInfoResponse {
-  details: {
-    source_language: {
-      name: string;
-      code: string;
-    };
-    name: string;
-    identifier: string;
-    created: string;
-    description: string;
-    join_policy: string;
-    last_build: string | null;
-    last_activity: string;
-    participants_count: string; // it's number, but string in the response
-    logo_url: string | null;
-    total_strings_count: string; // it's number, but string in the response
-    total_words_count: string; // it's number, but string in the response
-    duplicate_strings_count: number;
-    duplicate_words_count: number;
-    invite_url: {
-      translator: string;
-      proofreader: string;
-    };
-  };
-  languages: Array<{
-    name: string; // English language name
-    code: string;
-    can_translate: 0 | 1;
-    can_approve: 0 | 1;
-  }>;
-  files: Array<ProjectInfoFile | ProjectInfoDirectory>;
-}
-
-async function pullLocales() {
-  const { languages }: ProjectInfoResponse = await crowdin.projectInfo(
-    PROJECT_ID,
-  );
+async function pullLocales(): Promise<ProjectInfoResponse['languages']> {
+  const { languages } = await crowdin.projectInfo();
 
   return languages;
 }
 
-interface LanguageStatusNode {
-  node_type: 'directory' | 'file';
-  id: number;
-  name: string;
-  phrases: number;
-  translated: number;
-  approved: number;
-  words: number;
-  words_translated: number;
-  words_approved: number;
-  files: Array<LanguageStatusNode>;
-}
-
 function findFile(
-  root: Array<LanguageStatusNode>,
+  root: LanguageStatusResponse['files'],
   path: string,
 ): LanguageStatusNode | null {
   const [nodeToSearch, ...rest] = path.split('/');
@@ -229,14 +156,18 @@ async function pull() {
   );
   let downloadingTotal = 0;
   let downloadingReady = 0;
+
+  interface Result {
+    locale: ValuesType<typeof locales>,
+    progress: number,
+    translatesFilePath: string,
+  }
+
   const results = await Promise.all(
-    locales.map(async locale => {
-      const {
-        files,
-      }: { files: Array<LanguageStatusNode> } = await crowdin.languageStatus(
-        PROJECT_ID,
-        locale.code,
-      );
+    // TODO: there is should be some way to reimplement this
+    //       with reduce to avoid null values
+    locales.map(async (locale): Promise<Result | null> => {
+      const { files } = await crowdin.languageStatus(locale.code);
       checkingProgressBar.tick();
       const fileInfo = findFile(files, CROWDIN_FILE_PATH);
 
@@ -261,7 +192,6 @@ async function pull() {
       });
 
       const translatesFilePath = await crowdin.exportFile(
-        PROJECT_ID,
         CROWDIN_FILE_PATH,
         locale.code,
       );
@@ -291,47 +221,40 @@ async function pull() {
     },
   };
   await Promise.all(
-    results.map(
-      result =>
-        new Promise((resolve, reject) => {
-          if (result === null) {
-            resolve();
+    results
+      .filter((result): result is Result => result !== null)
+      .map(result => new Promise((resolve, reject) => {
+        const {
+          locale: { code, name },
+          progress,
+          translatesFilePath,
+        } = result;
+        const ourCode = toInternalLocale(code);
 
-            return;
-          }
+        indexFileEntries[ourCode] = {
+          code: ourCode,
+          name: NATIVE_NAMES_MAP[ourCode] || iso639.getNativeName(ourCode),
+          englishName: ENGLISH_NAMES_MAP[ourCode] || name,
+          progress: parseFloat(progress.toFixed(1)),
+          isReleased: RELEASED_LOCALES.includes(ourCode),
+        };
 
-          const {
-            locale: { code, name },
-            progress,
-            translatesFilePath,
-          } = result;
-          const ourCode = toInternalLocale(code);
-
-          indexFileEntries[ourCode] = {
-            code: ourCode,
-            name: NATIVE_NAMES_MAP[ourCode] || iso639.getNativeName(ourCode),
-            englishName: ENGLISH_NAMES_MAP[ourCode] || name,
-            progress: parseFloat(progress.toFixed(1)),
-            isReleased: RELEASED_LOCALES.includes(ourCode),
-          };
-
-          fs.copyFile(
-            translatesFilePath,
-            path.join(LANG_DIR, `${ourCode}.json`),
-            0,
-            err => {
-              err ? reject(err) : resolve();
-            },
-          );
-        }),
-    ),
+        fs.copyFile(
+          translatesFilePath,
+          path.join(LANG_DIR, `${ourCode}.json`),
+          0,
+          err => {
+            err ? reject(err) : resolve();
+          },
+        );
+      })),
   );
 
   console.log('Writing an index file.');
 
   fs.writeFileSync(
     path.join(LANG_DIR, INDEX_FILE_NAME),
-    serializeToFormattedJson(indexFileEntries, { asModule: true }),
+    serializeToModule(indexFileEntries),
   );
 
   console.log(ch.green('The index file was successfully written'));
@@ -362,12 +285,10 @@ function push() {
         console.log(`Publishing ${ch.bold(SOURCE_LANG)} translates file...`);
 
         await crowdin.updateFile(
-          PROJECT_ID,
           {
             [CROWDIN_FILE_PATH]: path.join(LANG_DIR, `${SOURCE_LANG}.json`),
           },
           {
-            // eslint-disable-next-line @typescript-eslint/camelcase
             update_option: disapprove
               ? 'update_as_unapproved'
               : 'update_without_changes',
diff --git a/packages/scripts/package.json b/packages/scripts/package.json
index 6d49004..3cd128a 100644
--- a/packages/scripts/package.json
+++ b/packages/scripts/package.json
@@ -11,12 +11,15 @@
   "license": "ISC",
   "dependencies": {
     "@babel/node": "^7.8.3",
+    "@types/mkdirp": "^0.5.2",
+    "@types/progress": "^2.0.3",
     "chalk": "^3.0.0",
-    "crowdin-api": "erickskrauch/crowdin-api#add_missed_methods_and_fix_files_uploading",
+    "crowdin-api": "^4.0.0",
     "glob": "^7.1.6",
     "iso-639-1": "^2.1.0",
     "mkdirp": "^0.5.1",
     "multi-progress": "^2.0.0",
-    "prompt": "^1.0.0"
+    "prompt": "^1.0.0",
+    "utility-types": "^3.10.0"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 41509ec..df18eb9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2787,6 +2787,11 @@
   resolved "https://registry.yarnpkg.com/@types/color-name/-/color-name-1.1.1.tgz#1c1261bbeaa10a8055bbc5d8ab84b7b2afc846a0"
   integrity sha512-rr+OQyAjxze7GgWrSaJwydHStIhHq2lvY3BOC2Mj7KnzI7XK0Uw1TOOdI9lDoajEbSWLiYgoo4f1R51erQfhPQ==
 
+"@types/debounce@^1.2.0":
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/@types/debounce/-/debounce-1.2.0.tgz#9ee99259f41018c640b3929e1bb32c3dcecdb192"
+  integrity sha512-bWG5wapaWgbss9E238T0R6bfo5Fh3OkeoSt245CM7JJwVwpw6MEBCbIxLq5z8KzsE3uJhzcIuQkyiZmzV3M/Dw==
+
 "@types/eslint-visitor-keys@^1.0.0":
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/@types/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz#1ee30d79544ca84d68d4b3cdb0af4f205663dd2d"
@@ -2819,6 +2824,11 @@
     "@types/react" "*"
     hoist-non-react-statics "^3.3.0"
 
+"@types/intl@^1.2.0":
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/@types/intl/-/intl-1.2.0.tgz#1245511f13064402087979f498764611a3c758fc"
+  integrity sha512-BP+KwmOvD9AR5aoxnbyyPr3fAtpjEI/bVImHsotmpuC43+z0NAmjJ9cQbX7vPCq8XcvCeAVc8E3KSQPYNaPsUQ==
+
 "@types/invariant@^2.2.31":
   version "2.2.31"
   resolved "https://registry.yarnpkg.com/@types/invariant/-/invariant-2.2.31.tgz#4444c03004f215289dbca3856538434317dd28b2"
@@ -2866,6 +2876,13 @@
   resolved "https://registry.yarnpkg.com/@types/minimatch/-/minimatch-3.0.3.tgz#3dca0e3f33b200fc7d1139c0cd96c1268cadfd9d"
   integrity sha512-tHq6qdbT9U1IRSGf14CL0pUlULksvY9OZ+5eEgl1N7t+OA3tGvNpxJCzuKQlsNgCVwbAs670L1vcVQi8j9HjnA==
 
+"@types/mkdirp@^0.5.2":
+  version "0.5.2"
+  resolved "https://registry.yarnpkg.com/@types/mkdirp/-/mkdirp-0.5.2.tgz#503aacfe5cc2703d5484326b1b27efa67a339c1f"
+  integrity sha512-U5icWpv7YnZYGsN4/cmh3WD2onMY0aJIiTE6+51TwJCttdHvtCYmkBNOobHlXwrJRL0nkH9jH4kD+1FAdMN4Tg==
+  dependencies:
+    "@types/node" "*"
+
 "@types/node@*", "@types/node@^12.0.0":
   version "12.12.24"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-12.12.24.tgz#d4606afd8cf6c609036b854360367d1b2c78931f"
@@ -2876,6 +2893,13 @@
   resolved "https://registry.yarnpkg.com/@types/parse-json/-/parse-json-4.0.0.tgz#2f8bb441434d163b35fb8ffdccd7138927ffb8c0"
   integrity sha512-//oorEZjL6sbPcKUaCdIGlIUeH26mgzimjBB77G6XRgnDl/L5wOnpyBGRe/Mmf5CVW3PwEBE1NjiMZ/ssFh4wA==
 
+"@types/progress@^2.0.3":
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/@types/progress/-/progress-2.0.3.tgz#7ccbd9c6d4d601319126c469e73b5bb90dfc8ccc"
+  integrity sha512-bPOsfCZ4tsTlKiBjBhKnM8jpY5nmIll166IPD58D92hR7G7kZDfx5iB9wGF4NfZrdKolebjeAr3GouYkSGoJ/A==
+  dependencies:
+    "@types/node" "*"
+
 "@types/prop-types@*":
   version "15.7.3"
   resolved "https://registry.yarnpkg.com/@types/prop-types/-/prop-types-15.7.3.tgz#2ab0d5da2e5815f94b0b9d4b95d1e5f243ab2ca7"
@@ -2886,6 +2910,11 @@
   resolved "https://registry.yarnpkg.com/@types/q/-/q-1.5.2.tgz#690a1475b84f2a884fd07cd797c00f5f31356ea8"
   integrity sha512-ce5d3q03Ex0sy4R14722Rmt6MT07Ua+k4FwDfdcToYJcMKNtRVQvJ6JCAPdAmAnbRb6CsX6aYb9m96NGod9uTw==
 
+"@types/raf@^3.4.0":
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/@types/raf/-/raf-3.4.0.tgz#2b72cbd55405e071f1c4d29992638e022b20acc2"
+  integrity sha512-taW5/WYqo36N7V39oYyHP9Ipfd5pNFvGTIQsNGj86xV88YQ7GnI30/yMfKDF7Zgin0m3e+ikX88FvImnK4RjGw==
+
 "@types/reach__router@^1.2.3":
   version "1.2.6"
   resolved "https://registry.yarnpkg.com/@types/reach__router/-/reach__router-1.2.6.tgz#b14cf1adbd1a365d204bbf6605cd9dd7b8816c87"
@@ -4156,7 +4185,7 @@ bluebird@3.7.1:
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.7.1.tgz#df70e302b471d7473489acf26a93d63b53f874de"
   integrity sha512-DdmyoGCleJnkbp3nkbxTLJ18rjDsE4yCggEwKNXkeV123sPNfOCYeDoeuOY+F2FrSjO1YXcTU+dsy96KMy+gcg==
 
-bluebird@^3.3.5, bluebird@^3.5.0, bluebird@^3.5.1, bluebird@^3.5.5:
+bluebird@^3.3.5, bluebird@^3.5.0, bluebird@^3.5.3, bluebird@^3.5.5:
   version "3.7.2"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.7.2.tgz#9f229c15be272454ffa973ace0dbee79a1b0c36f"
   integrity sha512-XpNj6GDQzdfW+r2Wnn7xiSAd7TM3jzkxGXBGTtWKuSXv1xUV+azxAm8jdWZN06QTQk+2N2XB9jRDkvbmQmcRtg==
@@ -5252,14 +5281,15 @@ cross-spawn@^7.0.0:
     shebang-command "^2.0.0"
     which "^2.0.1"
 
-crowdin-api@erickskrauch/crowdin-api#add_missed_methods_and_fix_files_uploading:
-  version "2.0.3"
-  resolved "https://codeload.github.com/erickskrauch/crowdin-api/tar.gz/acf088542aff16e903290ebf43866494fa07e58d"
+crowdin-api@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/crowdin-api/-/crowdin-api-4.0.0.tgz#faa1d0af62e97fcbdf94d7a0830db5f5ddbdb0e6"
+  integrity sha512-NEUMrtEvxhNjiBp68EEm0t4PGQaBxxUlKSQHy3GlgjepQffd2bxnBTx2+8LkB9wzClu2+euVV/MStQG7++tkVw==
   dependencies:
-    bluebird "^3.5.1"
+    bluebird "^3.5.3"
     request "^2.88.0"
-    request-promise "^4.2.2"
-    temp "^0.8.3"
+    request-promise "^4.2.4"
+    temp "^0.9.0"
 
 crypto-browserify@^3.11.0:
   version "3.12.0"
@@ -12661,7 +12691,7 @@ request-promise-native@^1.0.5:
     stealthy-require "^1.1.1"
     tough-cookie "^2.3.3"
 
-request-promise@^4.2.2:
+request-promise@^4.2.4:
   version "4.2.5"
   resolved "https://registry.yarnpkg.com/request-promise/-/request-promise-4.2.5.tgz#186222c59ae512f3497dfe4d75a9c8461bd0053c"
   integrity sha512-ZgnepCykFdmpq86fKGwqntyTiUrHycALuGggpyCZwMvGaZWgxW6yagT0FHkgo5LzYvOaCNvxYwWYIjevSH1EDg==
@@ -14083,10 +14113,10 @@ telejson@^3.2.0:
     lodash "^4.17.15"
     memoizerific "^1.11.3"
 
-temp@^0.8.3:
-  version "0.8.4"
-  resolved "https://registry.yarnpkg.com/temp/-/temp-0.8.4.tgz#8c97a33a4770072e0a05f919396c7665a7dd59f2"
-  integrity sha512-s0ZZzd0BzYv5tLSptZooSjK8oj6C+c19p7Vqta9+6NPOf7r+fxq0cJe6/oN4LTC79sy5NY8ucOJNgwsKCSbfqg==
+temp@^0.9.0:
+  version "0.9.1"
+  resolved "https://registry.yarnpkg.com/temp/-/temp-0.9.1.tgz#2d666114fafa26966cd4065996d7ceedd4dd4697"
+  integrity sha512-WMuOgiua1xb5R56lE0eH6ivpVmg/lq2OHm4+LtT/xtEtPQ+sz6N3bBM6WZ5FvO1lO4IKIOb43qnhoc4qxP5OeA==
   dependencies:
     rimraf "~2.6.2"
 
@@ -14721,6 +14751,11 @@ utile@0.3.x:
     ncp "1.0.x"
     rimraf "2.x.x"
 
+utility-types@^3.10.0:
+  version "3.10.0"
+  resolved "https://registry.yarnpkg.com/utility-types/-/utility-types-3.10.0.tgz#ea4148f9a741015f05ed74fd615e1d20e6bed82b"
+  integrity sha512-O11mqxmi7wMKCo6HKFt5AhO4BwY3VV68YU07tgxfz8zJTIxr4BpsezN49Ffwy9j3ZpwwJp4fkRwjRzq3uWE6Rg==
+
 utils-merge@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"