diff --git a/src/background/Application.ts b/src/background/Application.ts
new file mode 100644
index 0000000..08013cd
--- /dev/null
+++ b/src/background/Application.ts
@@ -0,0 +1,35 @@
+import { injectable } from 'tsyringe';
+import ContentMessageListener from './infrastructures/ContentMessageListener';
+import SettingController from './controllers/SettingController';
+import VersionController from './controllers/VersionController';
+
+@injectable()
+export default class Application {
+  constructor(
+    private contentMessageListener: ContentMessageListener,
+    private settingController: SettingController,
+    private versionController: VersionController,
+  ) {
+  }
+
+  run() {
+    this.settingController.reload();
+
+    browser.runtime.onInstalled.addListener((details) => {
+      if (details.reason !== 'install' && details.reason !== 'update') {
+        return;
+      }
+      this.versionController.notify();
+    });
+
+    this.contentMessageListener.run();
+    browser.storage.onChanged.addListener((changes, area) => {
+      if (area !== 'local') {
+        return;
+      }
+      if (changes.settings) {
+        this.settingController.reload();
+      }
+    });
+  }
+}
diff --git a/src/background/controllers/AddonEnabledController.ts b/src/background/controllers/AddonEnabledController.ts
index 251af25..903df40 100644
--- a/src/background/controllers/AddonEnabledController.ts
+++ b/src/background/controllers/AddonEnabledController.ts
@@ -1,10 +1,12 @@
+import { injectable } from 'tsyringe';
 import AddonEnabledUseCase from '../usecases/AddonEnabledUseCase';
 
+@injectable()
 export default class AddonEnabledController {
-  private addonEnabledUseCase: AddonEnabledUseCase;
 
-  constructor() {
-    this.addonEnabledUseCase = new AddonEnabledUseCase();
+  constructor(
+    private addonEnabledUseCase: AddonEnabledUseCase,
+  ) {
   }
 
   indicate(enabled: boolean): Promise<any> {
diff --git a/src/background/controllers/CommandController.ts b/src/background/controllers/CommandController.ts
index f3a6b7f..2ad1683 100644
--- a/src/background/controllers/CommandController.ts
+++ b/src/background/controllers/CommandController.ts
@@ -1,3 +1,4 @@
+import { injectable } from 'tsyringe';
 import CompletionsUseCase from '../usecases/CompletionsUseCase';
 import CommandUseCase from '../usecases/CommandUseCase';
 import CompletionGroup from '../domains/CompletionGroup';
@@ -7,14 +8,12 @@ const trimStart = (str: string): string => {
   return str.replace(/^\s+/, '');
 };
 
+@injectable()
 export default class CommandController {
-  private completionsUseCase: CompletionsUseCase;
-
-  private commandIndicator: CommandUseCase;
-
-  constructor() {
-    this.completionsUseCase = new CompletionsUseCase();
-    this.commandIndicator = new CommandUseCase();
+  constructor(
+    private completionsUseCase: CompletionsUseCase,
+    private commandIndicator: CommandUseCase,
+  ) {
   }
 
   getCompletions(line: string): Promise<CompletionGroup[]> {
diff --git a/src/background/controllers/FindController.ts b/src/background/controllers/FindController.ts
index 28959e2..1cec962 100644
--- a/src/background/controllers/FindController.ts
+++ b/src/background/controllers/FindController.ts
@@ -1,10 +1,11 @@
+import { injectable } from 'tsyringe';
 import FindUseCase from '../usecases/FindUseCase';
 
+@injectable()
 export default class FindController {
-  private findUseCase: FindUseCase;
-
-  constructor() {
-    this.findUseCase = new FindUseCase();
+  constructor(
+    private findUseCase: FindUseCase,
+  ) {
   }
 
   getKeyword(): Promise<string> {
diff --git a/src/background/controllers/LinkController.ts b/src/background/controllers/LinkController.ts
index 707b28a..af6148e 100644
--- a/src/background/controllers/LinkController.ts
+++ b/src/background/controllers/LinkController.ts
@@ -1,10 +1,11 @@
+import { injectable } from 'tsyringe';
 import LinkUseCase from '../usecases/LinkUseCase';
 
+@injectable()
 export default class LinkController {
-  private linkUseCase: LinkUseCase;
-
-  constructor() {
-    this.linkUseCase = new LinkUseCase();
+  constructor(
+    private linkUseCase: LinkUseCase,
+  ) {
   }
 
   openToTab(url: string, tabId: number): Promise<void> {
diff --git a/src/background/controllers/MarkController.ts b/src/background/controllers/MarkController.ts
index 419a08b..4726fbc 100644
--- a/src/background/controllers/MarkController.ts
+++ b/src/background/controllers/MarkController.ts
@@ -1,10 +1,11 @@
+import { injectable } from 'tsyringe';
 import MarkUseCase from '../usecases/MarkUseCase';
 
+@injectable()
 export default class MarkController {
-  private markUseCase: MarkUseCase;
-
-  constructor() {
-    this.markUseCase = new MarkUseCase();
+  constructor(
+    private markUseCase: MarkUseCase,
+  ) {
   }
 
   setGlobal(key: string, x: number, y: number): Promise<any> {
diff --git a/src/background/controllers/OperationController.ts b/src/background/controllers/OperationController.ts
index fa09512..de6f8cb 100644
--- a/src/background/controllers/OperationController.ts
+++ b/src/background/controllers/OperationController.ts
@@ -1,3 +1,4 @@
+import { injectable } from 'tsyringe';
 import * as operations from '../../shared/operations';
 import FindUseCase from '../usecases/FindUseCase';
 import ConsoleUseCase from '../usecases/ConsoleUseCase';
@@ -5,23 +6,15 @@ import TabUseCase from '../usecases/TabUseCase';
 import TabSelectUseCase from '../usecases/TabSelectUseCase';
 import ZoomUseCase from '../usecases/ZoomUseCase';
 
+@injectable()
 export default class OperationController {
-  private findUseCase: FindUseCase;
-
-  private consoleUseCase: ConsoleUseCase;
-
-  private tabUseCase: TabUseCase;
-
-  private tabSelectUseCase: TabSelectUseCase;
-
-  private zoomUseCase: ZoomUseCase;
-
-  constructor() {
-    this.findUseCase = new FindUseCase();
-    this.consoleUseCase = new ConsoleUseCase();
-    this.tabUseCase = new TabUseCase();
-    this.tabSelectUseCase = new TabSelectUseCase();
-    this.zoomUseCase = new ZoomUseCase();
+  constructor(
+    private findUseCase: FindUseCase,
+    private consoleUseCase: ConsoleUseCase,
+    private tabUseCase: TabUseCase,
+    private tabSelectUseCase: TabSelectUseCase,
+    private zoomUseCase: ZoomUseCase,
+  ) {
   }
 
   // eslint-disable-next-line complexity, max-lines-per-function
diff --git a/src/background/controllers/SettingController.ts b/src/background/controllers/SettingController.ts
index dfd2817..34951ff 100644
--- a/src/background/controllers/SettingController.ts
+++ b/src/background/controllers/SettingController.ts
@@ -1,15 +1,14 @@
+import { injectable } from 'tsyringe';
 import SettingUseCase from '../usecases/SettingUseCase';
 import ContentMessageClient from '../infrastructures/ContentMessageClient';
 import Settings from '../../shared/Settings';
 
+@injectable()
 export default class SettingController {
-  private settingUseCase: SettingUseCase;
-
-  private contentMessageClient: ContentMessageClient;
-
-  constructor() {
-    this.settingUseCase = new SettingUseCase();
-    this.contentMessageClient = new ContentMessageClient();
+  constructor(
+    private settingUseCase: SettingUseCase,
+    private contentMessageClient: ContentMessageClient,
+  ) {
   }
 
   getSetting(): Promise<Settings> {
diff --git a/src/background/controllers/VersionController.ts b/src/background/controllers/VersionController.ts
index 2e2a197..b00185a 100644
--- a/src/background/controllers/VersionController.ts
+++ b/src/background/controllers/VersionController.ts
@@ -1,10 +1,11 @@
+import { injectable } from 'tsyringe';
 import VersionUseCase from '../usecases/VersionUseCase';
 
+@injectable()
 export default class VersionController {
-  private versionUseCase: VersionUseCase;
-
-  constructor() {
-    this.versionUseCase = new VersionUseCase();
+  constructor(
+    private versionUseCase: VersionUseCase,
+  ) {
   }
 
   notify(): Promise<void> {
diff --git a/src/background/index.ts b/src/background/index.ts
index f9efd4d..26b0f6b 100644
--- a/src/background/index.ts
+++ b/src/background/index.ts
@@ -1,23 +1,6 @@
-import ContentMessageListener from './infrastructures/ContentMessageListener';
-import SettingController from './controllers/SettingController';
-import VersionController from './controllers/VersionController';
+import 'reflect-metadata';
+import { container } from 'tsyringe';
+import Application from './Application';
 
-let settingController = new SettingController();
-settingController.reload();
-
-browser.runtime.onInstalled.addListener((details) => {
-  if (details.reason !== 'install' && details.reason !== 'update') {
-    return;
-  }
-  new VersionController().notify();
-});
-
-new ContentMessageListener().run();
-browser.storage.onChanged.addListener((changes, area) => {
-  if (area !== 'local') {
-    return;
-  }
-  if (changes.settings) {
-    settingController.reload();
-  }
-});
+let app = container.resolve(Application);
+app.run();
diff --git a/src/background/infrastructures/ConsoleClient.ts b/src/background/infrastructures/ConsoleClient.ts
index c162634..1385fe7 100644
--- a/src/background/infrastructures/ConsoleClient.ts
+++ b/src/background/infrastructures/ConsoleClient.ts
@@ -1,5 +1,7 @@
+import { injectable } from 'tsyringe';
 import * as messages from '../../shared/messages';
 
+@injectable()
 export default class ConsoleClient {
   showCommand(tabId: number, command: string): Promise<any> {
     return browser.tabs.sendMessage(tabId, {
diff --git a/src/background/infrastructures/ContentMessageClient.ts b/src/background/infrastructures/ContentMessageClient.ts
index 2215330..2983409 100644
--- a/src/background/infrastructures/ContentMessageClient.ts
+++ b/src/background/infrastructures/ContentMessageClient.ts
@@ -1,5 +1,7 @@
+import { injectable } from 'tsyringe';
 import * as messages from '../../shared/messages';
 
+@injectable()
 export default class ContentMessageClient {
   async broadcastSettingsChanged(): Promise<void> {
     let tabs = await browser.tabs.query({});
diff --git a/src/background/infrastructures/ContentMessageListener.ts b/src/background/infrastructures/ContentMessageListener.ts
index 1cc2696..3d24741 100644
--- a/src/background/infrastructures/ContentMessageListener.ts
+++ b/src/background/infrastructures/ContentMessageListener.ts
@@ -1,3 +1,4 @@
+import { injectable } from 'tsyringe';
 import * as messages from '../../shared/messages';
 import CompletionGroup from '../domains/CompletionGroup';
 import CommandController from '../controllers/CommandController';
@@ -8,32 +9,19 @@ import LinkController from '../controllers/LinkController';
 import OperationController from '../controllers/OperationController';
 import MarkController from '../controllers/MarkController';
 
+@injectable()
 export default class ContentMessageListener {
-  private settingController: SettingController;
-
-  private commandController: CommandController;
-
-  private findController: FindController;
-
-  private addonEnabledController: AddonEnabledController;
-
-  private linkController: LinkController;
-
-  private backgroundOperationController: OperationController;
-
-  private markController: MarkController;
-
   private consolePorts: {[tabId: number]: browser.runtime.Port};
 
-  constructor() {
-    this.settingController = new SettingController();
-    this.commandController = new CommandController();
-    this.findController = new FindController();
-    this.addonEnabledController = new AddonEnabledController();
-    this.linkController = new LinkController();
-    this.backgroundOperationController = new OperationController();
-    this.markController = new MarkController();
-
+  constructor(
+    private settingController: SettingController,
+    private commandController: CommandController,
+    private findController: FindController,
+    private addonEnabledController: AddonEnabledController,
+    private linkController: LinkController,
+    private backgroundOperationController: OperationController,
+    private markController: MarkController,
+  ) {
     this.consolePorts = {};
   }
 
diff --git a/src/background/presenters/IndicatorPresenter.ts b/src/background/presenters/IndicatorPresenter.ts
index 1c81cf5..99f92b5 100644
--- a/src/background/presenters/IndicatorPresenter.ts
+++ b/src/background/presenters/IndicatorPresenter.ts
@@ -1,3 +1,6 @@
+import { injectable } from 'tsyringe';
+
+@injectable()
 export default class IndicatorPresenter {
   indicate(enabled: boolean): Promise<void> {
     let path = enabled
diff --git a/src/background/presenters/NotifyPresenter.ts b/src/background/presenters/NotifyPresenter.ts
index 23932f7..8fa4acb 100644
--- a/src/background/presenters/NotifyPresenter.ts
+++ b/src/background/presenters/NotifyPresenter.ts
@@ -1,5 +1,8 @@
+import { injectable } from 'tsyringe';
+
 const NOTIFICATION_ID = 'vimvixen-update';
 
+@injectable()
 export default class NotifyPresenter {
   async notify(
     title: string,
diff --git a/src/background/presenters/TabPresenter.ts b/src/background/presenters/TabPresenter.ts
index 33c6513..5665bf0 100644
--- a/src/background/presenters/TabPresenter.ts
+++ b/src/background/presenters/TabPresenter.ts
@@ -1,3 +1,4 @@
+import { injectable } from 'tsyringe';
 import MemoryStorage from '../infrastructures/MemoryStorage';
 
 const CURRENT_SELECTED_KEY = 'tabs.current.selected';
@@ -5,6 +6,7 @@ const LAST_SELECTED_KEY = 'tabs.last.selected';
 
 type Tab = browser.tabs.Tab;
 
+@injectable()
 export default class TabPresenter {
   open(url: string, tabId?: number): Promise<Tab> {
     return browser.tabs.update(tabId, { url });
diff --git a/src/background/presenters/WindowPresenter.ts b/src/background/presenters/WindowPresenter.ts
index e04f258..150a48b 100644
--- a/src/background/presenters/WindowPresenter.ts
+++ b/src/background/presenters/WindowPresenter.ts
@@ -1,3 +1,6 @@
+import { injectable } from 'tsyringe';
+
+@injectable()
 export default class WindowPresenter {
   create(url: string): Promise<browser.windows.Window> {
     return browser.windows.create({ url });
diff --git a/src/background/repositories/BookmarkRepository.ts b/src/background/repositories/BookmarkRepository.ts
index b4da509..d266ae6 100644
--- a/src/background/repositories/BookmarkRepository.ts
+++ b/src/background/repositories/BookmarkRepository.ts
@@ -1,3 +1,6 @@
+import { injectable } from 'tsyringe';
+
+@injectable()
 export default class BookmarkRepository {
   async create(
     title: string, url: string
diff --git a/src/background/repositories/BrowserSettingRepository.ts b/src/background/repositories/BrowserSettingRepository.ts
index 33b35dd..9cfb35e 100644
--- a/src/background/repositories/BrowserSettingRepository.ts
+++ b/src/background/repositories/BrowserSettingRepository.ts
@@ -1,3 +1,4 @@
+import { injectable } from 'tsyringe';
 import * as urls from '../../shared/urls';
 
 declare namespace browser.browserSettings.homepageOverride {
@@ -16,6 +17,7 @@ declare namespace browser.browserSettings.homepageOverride {
   function get(param: object): Promise<BrowserSettings>;
 }
 
+@injectable()
 export default class BrowserSettingRepository {
   async getHomepageUrls(): Promise<string[]> {
     let { value } = await browser.browserSettings.homepageOverride.get({});
diff --git a/src/background/repositories/CompletionsRepository.ts b/src/background/repositories/CompletionsRepository.ts
index 18af587..dfdbc27 100644
--- a/src/background/repositories/CompletionsRepository.ts
+++ b/src/background/repositories/CompletionsRepository.ts
@@ -1,6 +1,9 @@
+import { injectable } from 'tsyringe';
+
 type Tab = browser.tabs.Tab;
 type BookmarkTreeNode = browser.bookmarks.BookmarkTreeNode;
 
+@injectable()
 export default class CompletionsRepository {
   async queryBookmarks(keywords: string): Promise<BookmarkTreeNode[]> {
     let items = await browser.bookmarks.search({ query: keywords });
diff --git a/src/background/repositories/FindRepository.ts b/src/background/repositories/FindRepository.ts
index bf286e6..6a087f5 100644
--- a/src/background/repositories/FindRepository.ts
+++ b/src/background/repositories/FindRepository.ts
@@ -1,7 +1,9 @@
+import { injectable } from 'tsyringe';
 import MemoryStorage from '../infrastructures/MemoryStorage';
 
 const FIND_KEYWORD_KEY = 'find-keyword';
 
+@injectable()
 export default class FindRepository {
   private cache: MemoryStorage;
 
diff --git a/src/background/repositories/MarkRepository.ts b/src/background/repositories/MarkRepository.ts
index 69c85f6..c106fff 100644
--- a/src/background/repositories/MarkRepository.ts
+++ b/src/background/repositories/MarkRepository.ts
@@ -1,8 +1,10 @@
+import { injectable } from 'tsyringe';
 import MemoryStorage from '../infrastructures/MemoryStorage';
 import GlobalMark from '../domains/GlobalMark';
 
 const MARK_KEY = 'mark';
 
+@injectable()
 export default class MarkRepository {
   private cache: MemoryStorage;
 
diff --git a/src/background/repositories/PersistentSettingRepository.ts b/src/background/repositories/PersistentSettingRepository.ts
index ff882a5..927bce9 100644
--- a/src/background/repositories/PersistentSettingRepository.ts
+++ b/src/background/repositories/PersistentSettingRepository.ts
@@ -1,5 +1,7 @@
+import { injectable } from 'tsyringe';
 import SettingData from '../../shared/SettingData';
 
+@injectable()
 export default class SettingRepository {
   async load(): Promise<SettingData | null> {
     let { settings } = await browser.storage.local.get('settings');
diff --git a/src/background/repositories/SettingRepository.ts b/src/background/repositories/SettingRepository.ts
index eb83a2c..2f159e5 100644
--- a/src/background/repositories/SettingRepository.ts
+++ b/src/background/repositories/SettingRepository.ts
@@ -1,9 +1,11 @@
+import { injectable } from 'tsyringe';
 import MemoryStorage from '../infrastructures/MemoryStorage';
 import Settings from '../../shared/Settings';
 import * as PropertyDefs from '../../shared/property-defs';
 
 const CACHED_SETTING_KEY = 'setting';
 
+@injectable()
 export default class SettingRepository {
   private cache: MemoryStorage;
 
diff --git a/src/background/usecases/AddonEnabledUseCase.ts b/src/background/usecases/AddonEnabledUseCase.ts
index 0a6fb03..bb5cd90 100644
--- a/src/background/usecases/AddonEnabledUseCase.ts
+++ b/src/background/usecases/AddonEnabledUseCase.ts
@@ -1,27 +1,21 @@
+import { injectable } from 'tsyringe';
 import IndicatorPresenter from '../presenters/IndicatorPresenter';
 import TabPresenter from '../presenters/TabPresenter';
 import ContentMessageClient from '../infrastructures/ContentMessageClient';
 
+@injectable()
 export default class AddonEnabledUseCase {
-  private indicatorPresentor: IndicatorPresenter;
-
-  private tabPresenter: TabPresenter;
-
-  private contentMessageClient: ContentMessageClient;
-
-  constructor() {
-    this.indicatorPresentor = new IndicatorPresenter();
-
+  constructor(
+    private indicatorPresentor: IndicatorPresenter,
+    private tabPresenter: TabPresenter,
+    private contentMessageClient: ContentMessageClient,
+  ) {
     this.indicatorPresentor.onClick((tab) => {
       if (tab.id) {
         this.onIndicatorClick(tab.id);
       }
     });
-
-    this.tabPresenter = new TabPresenter();
     this.tabPresenter.onSelected(info => this.onTabSelected(info.tabId));
-
-    this.contentMessageClient = new ContentMessageClient();
   }
 
   indicate(enabled: boolean): Promise<void> {
diff --git a/src/background/usecases/CommandUseCase.ts b/src/background/usecases/CommandUseCase.ts
index 2247d7b..921a779 100644
--- a/src/background/usecases/CommandUseCase.ts
+++ b/src/background/usecases/CommandUseCase.ts
@@ -1,3 +1,4 @@
+import { injectable } from 'tsyringe';
 import * as parsers from './parsers';
 import * as urls from '../../shared/urls';
 import TabPresenter from '../presenters/TabPresenter';
@@ -7,27 +8,16 @@ import BookmarkRepository from '../repositories/BookmarkRepository';
 import ConsoleClient from '../infrastructures/ConsoleClient';
 import ContentMessageClient from '../infrastructures/ContentMessageClient';
 
+@injectable()
 export default class CommandIndicator {
-  private tabPresenter: TabPresenter;
-
-  private windowPresenter: WindowPresenter;
-
-  private settingRepository: SettingRepository;
-
-  private bookmarkRepository: BookmarkRepository;
-
-  private consoleClient: ConsoleClient;
-
-  private contentMessageClient: ContentMessageClient;
-
-  constructor() {
-    this.tabPresenter = new TabPresenter();
-    this.windowPresenter = new WindowPresenter();
-    this.settingRepository = new SettingRepository();
-    this.bookmarkRepository = new BookmarkRepository();
-    this.consoleClient = new ConsoleClient();
-
-    this.contentMessageClient = new ContentMessageClient();
+  constructor(
+    private tabPresenter: TabPresenter,
+    private windowPresenter: WindowPresenter,
+    private settingRepository: SettingRepository,
+    private bookmarkRepository: BookmarkRepository,
+    private consoleClient: ConsoleClient,
+    private contentMessageClient: ContentMessageClient,
+  ) {
   }
 
   async open(keywords: string): Promise<browser.tabs.Tab> {
diff --git a/src/background/usecases/CompletionsUseCase.ts b/src/background/usecases/CompletionsUseCase.ts
index da36e3c..705555b 100644
--- a/src/background/usecases/CompletionsUseCase.ts
+++ b/src/background/usecases/CompletionsUseCase.ts
@@ -1,3 +1,4 @@
+import { injectable } from 'tsyringe';
 import CompletionGroup from '../domains/CompletionGroup';
 import CommandDocs from '../domains/CommandDocs';
 import CompletionsRepository from '../repositories/CompletionsRepository';
@@ -11,17 +12,13 @@ const COMPLETION_ITEM_LIMIT = 10;
 type Tab = browser.tabs.Tab;
 type HistoryItem = browser.history.HistoryItem;
 
+@injectable()
 export default class CompletionsUseCase {
-  private tabPresenter: TabPresenter;
-
-  private completionsRepository: CompletionsRepository;
-
-  private settingRepository: SettingRepository;
-
-  constructor() {
-    this.tabPresenter = new TabPresenter();
-    this.completionsRepository = new CompletionsRepository();
-    this.settingRepository = new SettingRepository();
+  constructor(
+    private tabPresenter: TabPresenter,
+    private completionsRepository: CompletionsRepository,
+    private settingRepository: SettingRepository,
+  ) {
   }
 
   queryConsoleCommand(prefix: string): Promise<CompletionGroup[]> {
diff --git a/src/background/usecases/ConsoleUseCase.ts b/src/background/usecases/ConsoleUseCase.ts
index 60c0439..d0bd7bb 100644
--- a/src/background/usecases/ConsoleUseCase.ts
+++ b/src/background/usecases/ConsoleUseCase.ts
@@ -1,14 +1,14 @@
+import { injectable } from 'tsyringe';
 import TabPresenter from '../presenters/TabPresenter';
 import ConsoleClient from '../infrastructures/ConsoleClient';
 
+@injectable()
 export default class ConsoleUseCase {
-  private tabPresenter: TabPresenter;
 
-  private consoleClient: ConsoleClient;
-
-  constructor() {
-    this.tabPresenter = new TabPresenter();
-    this.consoleClient = new ConsoleClient();
+  constructor(
+    private tabPresenter: TabPresenter,
+    private consoleClient: ConsoleClient,
+  ) {
   }
 
   async showCommand(): Promise<any> {
diff --git a/src/background/usecases/FindUseCase.ts b/src/background/usecases/FindUseCase.ts
index d567800..41b9cbd 100644
--- a/src/background/usecases/FindUseCase.ts
+++ b/src/background/usecases/FindUseCase.ts
@@ -1,18 +1,15 @@
+import { injectable } from 'tsyringe';
 import FindRepository from '../repositories/FindRepository';
 import TabPresenter from '../presenters/TabPresenter';
 import ConsoleClient from '../infrastructures/ConsoleClient';
 
+@injectable()
 export default class FindUseCase {
-  private tabPresenter: TabPresenter;
-
-  private findRepository: FindRepository;
-
-  private consoleClient: ConsoleClient;
-
-  constructor() {
-    this.tabPresenter = new TabPresenter();
-    this.findRepository = new FindRepository();
-    this.consoleClient = new ConsoleClient();
+  constructor(
+    private tabPresenter: TabPresenter,
+    private findRepository: FindRepository,
+    private consoleClient: ConsoleClient,
+  ) {
   }
 
   getKeyword(): Promise<string> {
diff --git a/src/background/usecases/LinkUseCase.ts b/src/background/usecases/LinkUseCase.ts
index 480f6b5..e87867d 100644
--- a/src/background/usecases/LinkUseCase.ts
+++ b/src/background/usecases/LinkUseCase.ts
@@ -1,10 +1,11 @@
+import { injectable } from 'tsyringe';
 import TabPresenter from '../presenters/TabPresenter';
 
+@injectable()
 export default class LinkUseCase {
-  private tabPresenter: TabPresenter;
-
-  constructor() {
-    this.tabPresenter = new TabPresenter();
+  constructor(
+    private tabPresenter: TabPresenter,
+  ) {
   }
 
   openToTab(url: string, tabId: number): Promise<any> {
diff --git a/src/background/usecases/MarkUseCase.ts b/src/background/usecases/MarkUseCase.ts
index e376c55..8cb96da 100644
--- a/src/background/usecases/MarkUseCase.ts
+++ b/src/background/usecases/MarkUseCase.ts
@@ -1,22 +1,17 @@
+import { injectable } from 'tsyringe';
 import TabPresenter from '../presenters/TabPresenter';
 import MarkRepository from '../repositories/MarkRepository';
 import ConsoleClient from '../infrastructures/ConsoleClient';
 import ContentMessageClient from '../infrastructures/ContentMessageClient';
 
+@injectable()
 export default class MarkUseCase {
-  private tabPresenter: TabPresenter;
-
-  private markRepository: MarkRepository;
-
-  private consoleClient: ConsoleClient;
-
-  private contentMessageClient: ContentMessageClient;
-
-  constructor() {
-    this.tabPresenter = new TabPresenter();
-    this.markRepository = new MarkRepository();
-    this.consoleClient = new ConsoleClient();
-    this.contentMessageClient = new ContentMessageClient();
+  constructor(
+    private tabPresenter: TabPresenter,
+    private markRepository: MarkRepository,
+    private consoleClient: ConsoleClient,
+    private contentMessageClient: ContentMessageClient,
+  ) {
   }
 
   async setGlobal(key: string, x: number, y: number): Promise<any> {
diff --git a/src/background/usecases/SettingUseCase.ts b/src/background/usecases/SettingUseCase.ts
index aa3b534..fd00f80 100644
--- a/src/background/usecases/SettingUseCase.ts
+++ b/src/background/usecases/SettingUseCase.ts
@@ -1,17 +1,17 @@
-// eslint-disable-next-line max-len
-import PersistentSettingRepository from '../repositories/PersistentSettingRepository';
+import { injectable } from 'tsyringe';
+import PersistentSettingRepository
+  from '../repositories/PersistentSettingRepository';
 import SettingRepository from '../repositories/SettingRepository';
 import { DefaultSettingData } from '../../shared/SettingData';
 import Settings from '../../shared/Settings';
 
+@injectable()
 export default class SettingUseCase {
-  private persistentSettingRepository: PersistentSettingRepository;
 
-  private settingRepository: SettingRepository;
-
-  constructor() {
-    this.persistentSettingRepository = new PersistentSettingRepository();
-    this.settingRepository = new SettingRepository();
+  constructor(
+    private persistentSettingRepository: PersistentSettingRepository,
+    private settingRepository: SettingRepository,
+  ) {
   }
 
   get(): Promise<Settings> {
diff --git a/src/background/usecases/TabSelectUseCase.ts b/src/background/usecases/TabSelectUseCase.ts
index a0b52f0..df3db94 100644
--- a/src/background/usecases/TabSelectUseCase.ts
+++ b/src/background/usecases/TabSelectUseCase.ts
@@ -1,10 +1,11 @@
+import { injectable } from 'tsyringe';
 import TabPresenter from '../presenters/TabPresenter';
 
+@injectable()
 export default class TabSelectUseCase {
-  private tabPresenter: TabPresenter;
-
-  constructor() {
-    this.tabPresenter = new TabPresenter();
+  constructor(
+    private tabPresenter: TabPresenter,
+  ) {
   }
 
   async selectPrev(count: number): Promise<any> {
diff --git a/src/background/usecases/TabUseCase.ts b/src/background/usecases/TabUseCase.ts
index 1615333..0239a87 100644
--- a/src/background/usecases/TabUseCase.ts
+++ b/src/background/usecases/TabUseCase.ts
@@ -1,14 +1,13 @@
+import { injectable } from 'tsyringe';
 import TabPresenter from '../presenters/TabPresenter';
 import BrowserSettingRepository from '../repositories/BrowserSettingRepository';
 
+@injectable()
 export default class TabUseCase {
-  private tabPresenter: TabPresenter;
-
-  private browserSettingRepository: BrowserSettingRepository;
-
-  constructor() {
-    this.tabPresenter = new TabPresenter();
-    this.browserSettingRepository = new BrowserSettingRepository();
+  constructor(
+    private tabPresenter: TabPresenter,
+    private browserSettingRepository: BrowserSettingRepository,
+  ) {
   }
 
   async close(force: boolean): Promise<any> {
diff --git a/src/background/usecases/VersionUseCase.ts b/src/background/usecases/VersionUseCase.ts
index 8154eba..1d9ef8b 100644
--- a/src/background/usecases/VersionUseCase.ts
+++ b/src/background/usecases/VersionUseCase.ts
@@ -1,14 +1,13 @@
+import { injectable } from 'tsyringe';
 import TabPresenter from '../presenters/TabPresenter';
 import NotifyPresenter from '../presenters/NotifyPresenter';
 
+@injectable()
 export default class VersionUseCase {
-  private tabPresenter: TabPresenter;
-
-  private notifyPresenter: NotifyPresenter;
-
-  constructor() {
-    this.tabPresenter = new TabPresenter();
-    this.notifyPresenter = new NotifyPresenter();
+  constructor(
+    private tabPresenter: TabPresenter,
+    private notifyPresenter: NotifyPresenter,
+  ) {
   }
 
   notify(): Promise<void> {
diff --git a/src/background/usecases/ZoomUseCase.ts b/src/background/usecases/ZoomUseCase.ts
index 661c3cd..32ba897 100644
--- a/src/background/usecases/ZoomUseCase.ts
+++ b/src/background/usecases/ZoomUseCase.ts
@@ -1,3 +1,4 @@
+import { injectable } from 'tsyringe';
 import TabPresenter from '../presenters/TabPresenter';
 
 const ZOOM_SETTINGS: number[] = [
@@ -5,11 +6,11 @@ const ZOOM_SETTINGS: number[] = [
   1.10, 1.25, 1.50, 1.75, 2.00, 2.50, 3.00
 ];
 
+@injectable()
 export default class ZoomUseCase {
-  private tabPresenter: TabPresenter;
-
-  constructor() {
-    this.tabPresenter = new TabPresenter();
+  constructor(
+    private tabPresenter: TabPresenter,
+  ) {
   }
 
   async zoomIn(): Promise<any> {
diff --git a/test/main.ts b/test/main.ts
index 3aeae69..433b531 100644
--- a/test/main.ts
+++ b/test/main.ts
@@ -1,6 +1,8 @@
-import chai from 'chai';
+import 'reflect-metadata';
+import { expect } from 'chai';
+
 const browserFake = require('webextensions-api-fake');
 const browser = browserFake();
 
-global.expect = chai.expect;
+global.expect = expect;
 global.browser = browser;