diff --git a/packages/backend/src/core/chart/charts/test-grouped.ts b/packages/backend/src/core/chart/charts/test-grouped.ts
index 103cf2a27e..500e85f9f0 100644
--- a/packages/backend/src/core/chart/charts/test-grouped.ts
+++ b/packages/backend/src/core/chart/charts/test-grouped.ts
@@ -2,8 +2,8 @@ import { Injectable, Inject } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import { AppLockService } from '@/core/AppLockService.js';
 import { DI } from '@/di-symbols.js';
+import Logger from '@/logger.js';
 import Chart from '../core.js';
-import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/test-grouped.js';
 import type { KVs } from '../core.js';
 
@@ -20,9 +20,9 @@ export default class TestGroupedChart extends Chart<typeof schema> {
 		private db: DataSource,
 
 		private appLockService: AppLockService,
-		private chartLoggerService: ChartLoggerService,
+		private logger: Logger,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema, true);
+		super(db, (k) => appLockService.getChartInsertLock(k), logger, name, schema, true);
 	}
 
 	protected async tickMajor(group: string): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/src/core/chart/charts/test-intersection.ts b/packages/backend/src/core/chart/charts/test-intersection.ts
index 0e38769165..ff63e9976b 100644
--- a/packages/backend/src/core/chart/charts/test-intersection.ts
+++ b/packages/backend/src/core/chart/charts/test-intersection.ts
@@ -2,8 +2,8 @@ import { Injectable, Inject } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import { AppLockService } from '@/core/AppLockService.js';
 import { DI } from '@/di-symbols.js';
+import Logger from '@/logger.js';
 import Chart from '../core.js';
-import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/test-intersection.js';
 import type { KVs } from '../core.js';
 
@@ -18,9 +18,9 @@ export default class TestIntersectionChart extends Chart<typeof schema> {
 		private db: DataSource,
 
 		private appLockService: AppLockService,
-		private chartLoggerService: ChartLoggerService,
+		private logger: Logger,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema);
+		super(db, (k) => appLockService.getChartInsertLock(k), logger, name, schema);
 	}
 
 	protected async tickMajor(): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/src/core/chart/charts/test-unique.ts b/packages/backend/src/core/chart/charts/test-unique.ts
index 44e1b8365d..3be4b0df2b 100644
--- a/packages/backend/src/core/chart/charts/test-unique.ts
+++ b/packages/backend/src/core/chart/charts/test-unique.ts
@@ -2,8 +2,8 @@ import { Injectable, Inject } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import { AppLockService } from '@/core/AppLockService.js';
 import { DI } from '@/di-symbols.js';
+import Logger from '@/logger.js';
 import Chart from '../core.js';
-import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/test-unique.js';
 import type { KVs } from '../core.js';
 
@@ -18,9 +18,9 @@ export default class TestUniqueChart extends Chart<typeof schema> {
 		private db: DataSource,
 
 		private appLockService: AppLockService,
-		private chartLoggerService: ChartLoggerService,
+		private logger: Logger,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema);
+		super(db, (k) => appLockService.getChartInsertLock(k), logger, name, schema);
 	}
 
 	protected async tickMajor(): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/src/core/chart/charts/test.ts b/packages/backend/src/core/chart/charts/test.ts
index 6269674023..89f64c4c1d 100644
--- a/packages/backend/src/core/chart/charts/test.ts
+++ b/packages/backend/src/core/chart/charts/test.ts
@@ -2,8 +2,8 @@ import { Injectable, Inject } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import { AppLockService } from '@/core/AppLockService.js';
 import { DI } from '@/di-symbols.js';
+import Logger from '@/logger.js';
 import Chart from '../core.js';
-import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/test.js';
 import type { KVs } from '../core.js';
 
@@ -20,9 +20,9 @@ export default class TestChart extends Chart<typeof schema> {
 		private db: DataSource,
 
 		private appLockService: AppLockService,
-		private chartLoggerService: ChartLoggerService,
+		private logger: Logger,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema);
+		super(db, (k) => appLockService.getChartInsertLock(k), logger, name, schema);
 	}
 
 	protected async tickMajor(): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/test/unit/chart.ts b/packages/backend/test/unit/chart.ts
index f1159976fd..036d0e19fd 100644
--- a/packages/backend/test/unit/chart.ts
+++ b/packages/backend/test/unit/chart.ts
@@ -14,6 +14,7 @@ import { entity as TestUniqueChartEntity } from '@/core/chart/charts/entities/te
 import { entity as TestIntersectionChartEntity } from '@/core/chart/charts/entities/test-intersection.js';
 import { loadConfig } from '@/config.js';
 import type { AppLockService } from '@/core/AppLockService';
+import Logger from '@/logger.js';
 
 describe('Chart', () => {
 	const config = loadConfig();
@@ -57,10 +58,11 @@ describe('Chart', () => {
 
 		await db.initialize();
 
-		testChart = new TestChart(db, appLockService);
-		testGroupedChart = new TestGroupedChart(db, appLockService);
-		testUniqueChart = new TestUniqueChart(db, appLockService);
-		testIntersectionChart = new TestIntersectionChart(db, appLockService);
+		const logger = new Logger('chart'); // TODO: モックにする
+		testChart = new TestChart(db, appLockService, logger);
+		testGroupedChart = new TestGroupedChart(db, appLockService, logger);
+		testUniqueChart = new TestUniqueChart(db, appLockService, logger);
+		testIntersectionChart = new TestIntersectionChart(db, appLockService, logger);
 
 		clock = lolex.install({
 			now: new Date(Date.UTC(2000, 0, 1, 0, 0, 0)),