diff --git a/pkg/logutil/factory.go b/pkg/logutil/factory.go
index c217412..2049d25 100644
--- a/pkg/logutil/factory.go
+++ b/pkg/logutil/factory.go
@@ -55,8 +55,9 @@ func NewLogger(logPath string) *Logger {
 
 	// Set up file logging with overwrite mode
 	logFile := zapcore.AddSync(&lumberjack.Logger{
-		Filename: logPath,
-		MaxSize:  10, // megabytes
+		Filename:   logPath,
+		MaxSize:    10, // megabytes
+		MaxBackups: 20,
 	})
 	fmt.Println("Logging to", logPath)