diff --git a/src/index.ts b/src/index.ts
index 470699eab..ed23ff7e7 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -20,7 +20,6 @@ import Logger from './misc/logger';
 import ProgressBar from './misc/cli/progressbar';
 import EnvironmentInfo from './misc/environmentInfo';
 import MachineInfo from './misc/machineInfo';
-import DependencyInfo from './misc/dependencyInfo';
 import serverStats from './daemons/server-stats';
 import notesStats from './daemons/notes-stats';
 import loadConfig from './config/load';
@@ -116,7 +115,6 @@ async function init(): Promise<Config> {
 	new Logger('Deps').info(`Node.js ${process.version}`);
 	MachineInfo.show();
 	EnvironmentInfo.show();
-	new DependencyInfo().showAll();
 
 	const configLogger = new Logger('Config');
 	let config;
diff --git a/src/misc/dependencyInfo.ts b/src/misc/dependencyInfo.ts
deleted file mode 100644
index 09d282822..000000000
--- a/src/misc/dependencyInfo.ts
+++ /dev/null
@@ -1,32 +0,0 @@
-import Logger from './logger';
-import { execSync } from 'child_process';
-
-export default class {
-	private logger: Logger;
-
-	constructor() {
-		this.logger = new Logger('Deps');
-	}
-
-	public showAll(): void {
-		this.show('MongoDB', 'mongo --version', x => x.match(/^MongoDB shell version:? v(.*)\r?\n/));
-		this.show('Redis', 'redis-server --version', x => x.match(/v=([0-9\.]*)/));
-	}
-
-	public show(serviceName: string, command: string, transform: (x: string) => RegExpMatchArray): void {
-		try {
-			// ステータス0以外のときにexecSyncはstderrをコンソール上に出力してしまうので
-			// プロセスからのstderrをすべて無視するように stdio オプションをセット
-			const x = execSync(command, { stdio: ['pipe', 'pipe', 'ignore'] });
-			const ver = transform(x.toString());
-			if (ver != null) {
-				this.logger.succ(`${serviceName} ${ver[1]} found`);
-			} else {
-				this.logger.warn(`${serviceName} not found`);
-				this.logger.warn(`Regexp used for version check of ${serviceName} is probably messed up`);
-			}
-		} catch (e) {
-			this.logger.warn(`${serviceName} not found`);
-		}
-	}
-}