diff --git a/packages/backend/src/NestLogger.ts b/packages/backend/src/NestLogger.ts
index 80f1f7a024..d0be19664f 100644
--- a/packages/backend/src/NestLogger.ts
+++ b/packages/backend/src/NestLogger.ts
@@ -7,7 +7,7 @@ import { LoggerService } from '@nestjs/common';
 import Logger from '@/logger.js';
 
 const logger = new Logger('core', 'cyan');
-const nestLogger = logger.createSubLogger('nest', 'green', false);
+const nestLogger = logger.createSubLogger('nest', 'green');
 
 export class NestLogger implements LoggerService {
 	/**
diff --git a/packages/backend/src/boot/entry.ts b/packages/backend/src/boot/entry.ts
index 04c6ca9723..25375c3015 100644
--- a/packages/backend/src/boot/entry.ts
+++ b/packages/backend/src/boot/entry.ts
@@ -25,7 +25,7 @@ Error.stackTraceLimit = Infinity;
 EventEmitter.defaultMaxListeners = 128;
 
 const logger = new Logger('core', 'cyan');
-const clusterLogger = logger.createSubLogger('cluster', 'orange', false);
+const clusterLogger = logger.createSubLogger('cluster', 'orange');
 const ev = new Xev();
 
 //#region Events
diff --git a/packages/backend/src/postgres.ts b/packages/backend/src/postgres.ts
index 2d14537bbb..aa2aa5e373 100644
--- a/packages/backend/src/postgres.ts
+++ b/packages/backend/src/postgres.ts
@@ -85,7 +85,7 @@ import { bindThis } from '@/decorators.js';
 
 export const dbLogger = new MisskeyLogger('db');
 
-const sqlLogger = dbLogger.createSubLogger('sql', 'gray', false);
+const sqlLogger = dbLogger.createSubLogger('sql', 'gray');
 
 class MyCustomLogger implements Logger {
 	@bindThis