Zap package in Go prints all logs even I set log level as Debug level

I use zap I've set the log level as a debug level but when I run the application I get all levels.

cfg := zap.Config{
		Encoding:         "json",
		Level:            zap.NewAtomicLevelAt(zapcore.DebugLevel),
		OutputPaths:      []string{"stderr"},
		ErrorOutputPaths: []string{"stderr"},
		EncoderConfig: zapcore.EncoderConfig{
			MessageKey: "message",

			LevelKey:    "level",
			EncodeLevel: zapcore.CapitalLevelEncoder,

			TimeKey:    "time",
			EncodeTime: zapcore.ISO8601TimeEncoder,

			CallerKey:    "caller",
			EncodeCaller: zapcore.ShortCallerEncoder,
		},
	}
	logger, err := cfg.Build()
	if err != nil {
		panic(err)
	}
	defer logger.Sync()

	logger.Info("info msg")
	logger.Debug("debug msg")
	logger.Error("error msg")

How can I set a specific debug level?

Setting the log level to DEBUG will log everything with DEBUG level and above (which includes INFO and ERROR), it won't log only debug level logs. Logging is a hierarchical system; you set the level to the lowest level log you want to see, and then that level and above will be logged.

See also zapcore.Level.Enabled:

> Enabled returns true if the given level is at or above this level.