diff --git a/app.go b/app.go
index 2e1d1a7..63334cd 100644
--- a/app.go
+++ b/app.go
@@ -14,22 +14,19 @@ import (
 	"github.com/nspcc-dev/neofs-http-gw/downloader"
 	"github.com/nspcc-dev/neofs-http-gw/response"
 	"github.com/nspcc-dev/neofs-http-gw/uploader"
-	"github.com/nspcc-dev/neofs-sdk-go/logger"
 	"github.com/nspcc-dev/neofs-sdk-go/pool"
 	"github.com/spf13/viper"
 	"github.com/valyala/fasthttp"
 	"go.uber.org/zap"
-	"google.golang.org/grpc/grpclog"
 )
 
 type (
 	app struct {
-		log          *zap.Logger
-		pool         *pool.Pool
-		cfg          *viper.Viper
-		auxiliaryLog logger.Logger
-		webServer    *fasthttp.Server
-		webDone      chan struct{}
+		log       *zap.Logger
+		pool      *pool.Pool
+		cfg       *viper.Viper
+		webServer *fasthttp.Server
+		webDone   chan struct{}
 	}
 
 	// App is an interface for the main gateway function.
@@ -77,10 +74,7 @@ func newApp(ctx context.Context, opt ...Option) App {
 	for i := range opt {
 		opt[i](a)
 	}
-	a.auxiliaryLog = logger.GRPC(a.log)
-	if a.cfg.GetBool(cmdVerbose) {
-		grpclog.SetLoggerV2(a.auxiliaryLog)
-	}
+
 	// -- setup FastHTTP server --
 	a.webServer.Name = "neofs-http-gw"
 	a.webServer.ReadBufferSize = a.cfg.GetInt(cfgWebReadBufferSize)
@@ -182,7 +176,7 @@ func getKeyFromWallet(w *wallet.Wallet, addrStr string, password *string) (*ecds
 }
 
 func (a *app) Wait() {
-	a.log.Info("starting application", zap.String("version", a.cfg.GetString(cfgApplicationVersion)))
+	a.log.Info("starting application", zap.String("app_name", "neofs-http-gw"), zap.String("version", Version))
 	<-a.webDone // wait for web-server to be stopped
 }
 
@@ -220,7 +214,7 @@ func (a *app) Serve(ctx context.Context) {
 	// enable metrics
 	if a.cfg.GetBool(cmdMetrics) {
 		a.log.Info("added path /metrics/")
-		attachMetrics(r, a.auxiliaryLog)
+		attachMetrics(r, a.log)
 	}
 	// enable pprof
 	if a.cfg.GetBool(cmdPprof) {
diff --git a/go.mod b/go.mod
index 65c4c71..046ec64 100644
--- a/go.mod
+++ b/go.mod
@@ -24,6 +24,5 @@ require (
 	go.uber.org/zap v1.18.1
 	golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba // indirect
 	golang.org/x/tools v0.1.5 // indirect
-	google.golang.org/grpc v1.41.0
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 )
diff --git a/main.go b/main.go
index 966904c..b54fd67 100644
--- a/main.go
+++ b/main.go
@@ -2,12 +2,13 @@ package main
 
 import (
 	"context"
+	"fmt"
 	"os/signal"
 	"syscall"
 
-	"github.com/nspcc-dev/neofs-sdk-go/logger"
 	"github.com/spf13/viper"
 	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
 )
 
 func main() {
@@ -21,25 +22,45 @@ func main() {
 	app.Wait()
 }
 
+// newLogger constructs a zap.Logger instance for current application.
+// Panics on failure.
+//
+// Logger is built from zap's production logging configuration with:
+//  * parameterized level (debug by default)
+//  * console encoding
+//  * ISO8601 time encoding
+//
+// Logger records a stack trace for all messages at or above fatal level.
+//
+// See also zapcore.Level, zap.NewProductionConfig, zap.AddStacktrace.
 func newLogger(v *viper.Viper) *zap.Logger {
-	options := []logger.Option{
-		logger.WithLevel(v.GetString(cfgLoggerLevel)),
-		logger.WithTraceLevel(v.GetString(cfgLoggerTraceLevel)),
-		logger.WithFormat(v.GetString(cfgLoggerFormat)),
-		logger.WithSamplingInitial(v.GetInt(cfgLoggerSamplingInitial)),
-		logger.WithSamplingThereafter(v.GetInt(cfgLoggerSamplingThereafter)),
-		logger.WithAppName(v.GetString(cfgApplicationName)),
-		logger.WithAppVersion(v.GetString(cfgApplicationVersion)),
-	}
-	if v.GetBool(cfgLoggerNoCaller) {
-		options = append(options, logger.WithoutCaller())
-	}
-	if v.GetBool(cfgLoggerNoDisclaimer) {
-		options = append(options, logger.WithoutDisclaimer())
-	}
-	l, err := logger.New(options...)
+	var lvl zapcore.Level
+	lvlStr := v.GetString(cfgLoggerLevel)
+	err := lvl.UnmarshalText([]byte(lvlStr))
 	if err != nil {
-		panic(err)
+		panic(fmt.Sprintf("incorrect logger level configuration %s (%v), "+
+			"value should be one of %v", lvlStr, err, [...]zapcore.Level{
+			zapcore.DebugLevel,
+			zapcore.InfoLevel,
+			zapcore.WarnLevel,
+			zapcore.ErrorLevel,
+			zapcore.DPanicLevel,
+			zapcore.PanicLevel,
+			zapcore.FatalLevel,
+		}))
 	}
+
+	c := zap.NewProductionConfig()
+	c.Level = zap.NewAtomicLevelAt(lvl)
+	c.Encoding = "console"
+	c.EncoderConfig.EncodeTime = zapcore.ISO8601TimeEncoder
+
+	l, err := c.Build(
+		zap.AddStacktrace(zap.NewAtomicLevelAt(zap.FatalLevel)),
+	)
+	if err != nil {
+		panic(fmt.Sprintf("build zap logger instance: %v", err))
+	}
+
 	return l
 }
diff --git a/metrics.go b/metrics.go
index b2f071e..6f8f6da 100644
--- a/metrics.go
+++ b/metrics.go
@@ -9,21 +9,14 @@ import (
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"github.com/prometheus/common/expfmt"
 	"github.com/valyala/fasthttp"
+	"go.uber.org/zap"
 )
 
-func attachMetrics(r *router.Router, z promhttp.Logger) {
-	r.GET("/metrics/", metricsHandler(prometheus.DefaultGatherer, promhttp.HandlerOpts{
-		ErrorLog: z,
-		// ErrorHandling:       0,
-		// Registry:            nil,
-		// DisableCompression:  false,
-		// MaxRequestsInFlight: 0,
-		// Timeout:             0,
-		// EnableOpenMetrics:   false,
-	}))
+func attachMetrics(r *router.Router, l *zap.Logger) {
+	r.GET("/metrics/", metricsHandler(prometheus.DefaultGatherer, l, promhttp.HandlerOpts{}))
 }
 
-func metricsHandler(reg prometheus.Gatherer, opts promhttp.HandlerOpts) fasthttp.RequestHandler {
+func metricsHandler(reg prometheus.Gatherer, logger *zap.Logger, opts promhttp.HandlerOpts) fasthttp.RequestHandler {
 	var (
 		inFlightSem chan struct{}
 		errCnt      = prometheus.NewCounterVec(
@@ -66,7 +59,7 @@ func metricsHandler(reg prometheus.Gatherer, opts promhttp.HandlerOpts) fasthttp
 		}
 		mfs, err := reg.Gather()
 		if err != nil {
-			if opts.ErrorLog != nil {
+			if logger != nil {
 				panic("error gathering metrics:" + err.Error())
 			}
 
@@ -99,8 +92,8 @@ func metricsHandler(reg prometheus.Gatherer, opts promhttp.HandlerOpts) fasthttp
 				return false
 			}
 			lastErr = err
-			if opts.ErrorLog != nil {
-				opts.ErrorLog.Println("error encoding and sending metric family:", err)
+			if logger != nil {
+				logger.Error("encoding and sending metric family", zap.Error(err))
 			}
 			errCnt.WithLabelValues("encoding").Inc()
 			switch opts.ErrorHandling {
diff --git a/settings.go b/settings.go
index 5ab6323..841c1df 100644
--- a/settings.go
+++ b/settings.go
@@ -36,13 +36,7 @@ const (
 	cfgRebalance  = "rebalance_timer"
 
 	// Logger.
-	cfgLoggerLevel              = "logger.level"
-	cfgLoggerFormat             = "logger.format"
-	cfgLoggerTraceLevel         = "logger.trace_level"
-	cfgLoggerNoCaller           = "logger.no_caller"
-	cfgLoggerNoDisclaimer       = "logger.no_disclaimer"
-	cfgLoggerSamplingInitial    = "logger.sampling.initial"
-	cfgLoggerSamplingThereafter = "logger.sampling.thereafter"
+	cfgLoggerLevel = "logger.level"
 
 	// Wallet.
 	cfgWalletPassphrase = "wallet.passphrase"
@@ -56,10 +50,6 @@ const (
 	// Zip compression.
 	cfgZipCompression = "zip.compression"
 
-	// Application.
-	cfgApplicationName    = "app.name"
-	cfgApplicationVersion = "app.version"
-
 	// Command line args.
 	cmdHelp    = "help"
 	cmdVersion = "version"
@@ -72,11 +62,9 @@ const (
 )
 
 var ignore = map[string]struct{}{
-	cfgApplicationName:    {},
-	cfgApplicationVersion: {},
-	cfgPeers:              {},
-	cmdHelp:               {},
-	cmdVersion:            {},
+	cfgPeers:   {},
+	cmdHelp:    {},
+	cmdVersion: {},
 }
 
 func settings() *viper.Viper {
@@ -111,20 +99,10 @@ func settings() *viper.Viper {
 	flags.String(cfgTLSKey, "", "TLS key path")
 	peers := flags.StringArrayP(cfgPeers, "p", nil, "NeoFS nodes")
 
-	// set prefers:
-	v.Set(cfgApplicationName, "neofs-http-gw")
-	v.Set(cfgApplicationVersion, Version)
-
 	// set defaults:
 
 	// logger:
 	v.SetDefault(cfgLoggerLevel, "debug")
-	v.SetDefault(cfgLoggerFormat, "console")
-	v.SetDefault(cfgLoggerTraceLevel, "panic")
-	v.SetDefault(cfgLoggerNoCaller, false)
-	v.SetDefault(cfgLoggerNoDisclaimer, true)
-	v.SetDefault(cfgLoggerSamplingInitial, 1000)
-	v.SetDefault(cfgLoggerSamplingThereafter, 1000)
 
 	// web-server:
 	v.SetDefault(cfgWebReadBufferSize, 4096)
diff --git a/uploader/filter_test.go b/uploader/filter_test.go
index 4dc8e0c..913f076 100644
--- a/uploader/filter_test.go
+++ b/uploader/filter_test.go
@@ -7,14 +7,13 @@ import (
 
 	"github.com/nspcc-dev/neofs-api-go/v2/object"
 	"github.com/nspcc-dev/neofs-http-gw/utils"
-	"github.com/nspcc-dev/neofs-sdk-go/logger"
 	"github.com/stretchr/testify/require"
 	"github.com/valyala/fasthttp"
+	"go.uber.org/zap"
 )
 
 func TestFilter(t *testing.T) {
-	log, err := logger.New()
-	require.NoError(t, err)
+	log := zap.NewNop()
 
 	req := &fasthttp.RequestHeader{}
 	req.DisableNormalizing()