diff --git a/go.mod b/go.mod
index b9e46e8ca7..12f5dbefa1 100644
--- a/go.mod
+++ b/go.mod
@@ -18,7 +18,7 @@ require (
 	github.com/prometheus/procfs v0.19.2 // indirect
 	github.com/rs/zerolog v1.34.0
 	github.com/smira/go-statsd v1.3.4
-	github.com/stretchr/objx v0.5.2 // indirect
+	github.com/stretchr/objx v0.5.3 // indirect
 	github.com/stretchr/testify v1.11.1
 	github.com/tylertreat/BoomFilters v0.0.0-20251117164519-53813c36cc1b
 	golang.org/x/crypto v0.48.0
diff --git a/go.sum b/go.sum
index aac55d1a6d..f7d495194c 100644
--- a/go.sum
+++ b/go.sum
@@ -78,8 +78,9 @@ github.com/smira/go-statsd v1.3.4/go.mod h1:RjdsESPgDODtg1VpVVf9MJrEW2Hw0wtRNbmB
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
-github.com/stretchr/objx v0.5.2 h1:xuMeJ0Sdp5ZMRXx/aWO6RZxdr3beISkG5/G/aIRr3pY=
 github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
+github.com/stretchr/objx v0.5.3 h1:jmXUvGomnU1o3W/V5h2VEradbpJDwGrzugQQvL0POH4=
+github.com/stretchr/objx v0.5.3/go.mod h1:rDQraq+vQZU7Fde9LOZLr8Tax6zZvy4kuNKF+QYS+U0=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
diff --git a/internal/cli/access.go b/internal/cli/access.go
index 766a793f1c..2e99c98adf 100644
--- a/internal/cli/access.go
+++ b/internal/cli/access.go
@@ -129,7 +129,7 @@ func (a *Access) getIP(ntw mtglib.Network, protocol string) net.IP {
 
 	defer func() {
 		io.Copy(io.Discard, resp.Body) //nolint: errcheck
-		resp.Body.Close() //nolint: errcheck
+		resp.Body.Close()              //nolint: errcheck
 	}()
 
 	data, err := io.ReadAll(resp.Body)
diff --git a/internal/config/type_bool_test.go b/internal/config/type_bool_test.go
index 99d0488f59..8098f05c10 100644
--- a/internal/config/type_bool_test.go
+++ b/internal/config/type_bool_test.go
@@ -20,7 +20,7 @@ type TypeBoolTestSuite struct {
 }
 
 func (suite *TypeBoolTestSuite) TestUnmarshalFail() {
-	testData := []interface{}{
+	testData := []any{
 		"",
 		"np",
 		"нет",
@@ -29,7 +29,7 @@ func (suite *TypeBoolTestSuite) TestUnmarshalFail() {
 	}
 
 	for _, v := range testData {
-		data, err := json.Marshal(map[string]interface{}{
+		data, err := json.Marshal(map[string]any{
 			"value": v,
 		})
 		suite.NoError(err)
diff --git a/internal/utils/root_context.go b/internal/utils/root_context.go
index 0f24c3fce1..0bb43aa88c 100644
--- a/internal/utils/root_context.go
+++ b/internal/utils/root_context.go
@@ -1,5 +1,4 @@
 //go:build !windows
-// +build !windows
 
 package utils
 
diff --git a/internal/utils/root_context_windows.go b/internal/utils/root_context_windows.go
index 97b66b7112..1760c20612 100644
--- a/internal/utils/root_context_windows.go
+++ b/internal/utils/root_context_windows.go
@@ -1,5 +1,4 @@
 //go:build windows
-// +build windows
 
 package utils
 
diff --git a/ipblocklist/files/http.go b/ipblocklist/files/http.go
index 84bbfbce51..40fb6210e2 100644
--- a/ipblocklist/files/http.go
+++ b/ipblocklist/files/http.go
@@ -23,7 +23,7 @@ func (h httpFile) Open(ctx context.Context) (io.ReadCloser, error) {
 	if err != nil {
 		if response != nil {
 			io.Copy(io.Discard, response.Body) //nolint: errcheck
-			response.Body.Close() //nolint: errcheck
+			response.Body.Close()              //nolint: errcheck
 		}
 
 		return nil, fmt.Errorf("cannot get url %s: %w", h.url, err)
diff --git a/logger/init.go b/logger/init.go
index da4ff400c4..56906fcd86 100644
--- a/logger/init.go
+++ b/logger/init.go
@@ -8,5 +8,5 @@ package logger
 // commonly used by many 3pp tools. While mtglib itself does not need it, it is
 // always a good idea to support it and have a transient end to end logging.
 type StdLikeLogger interface {
-	Printf(format string, args ...interface{})
+	Printf(format string, args ...any)
 }
diff --git a/logger/noop.go b/logger/noop.go
index 5d04b795eb..768e48b649 100644
--- a/logger/noop.go
+++ b/logger/noop.go
@@ -8,7 +8,7 @@ func (n noopLogger) Named(_ string) mtglib.Logger          { return n }
 func (n noopLogger) BindInt(_ string, _ int) mtglib.Logger { return n }
 func (n noopLogger) BindStr(_, _ string) mtglib.Logger     { return n }
 func (n noopLogger) BindJSON(_, _ string) mtglib.Logger    { return n }
-func (n noopLogger) Printf(_ string, _ ...interface{})     {}
+func (n noopLogger) Printf(_ string, _ ...any)             {}
 func (n noopLogger) Info(_ string)                         {}
 func (n noopLogger) Warning(_ string)                      {}
 func (n noopLogger) Debug(_ string)                        {}
diff --git a/logger/zerolog.go b/logger/zerolog.go
index 4f9c9b7052..4cf7cd6c67 100644
--- a/logger/zerolog.go
+++ b/logger/zerolog.go
@@ -78,7 +78,7 @@ func (z *zeroLogContext) BindJSON(name, value string) mtglib.Logger {
 	}
 }
 
-func (z *zeroLogContext) Printf(format string, args ...interface{}) {
+func (z *zeroLogContext) Printf(format string, args ...any) {
 	z.Debug(fmt.Sprintf(format, args...))
 }
 
diff --git a/mtglib/init.go b/mtglib/init.go
index 40e3f41260..81dee7a014 100644
--- a/mtglib/init.go
+++ b/mtglib/init.go
@@ -249,7 +249,7 @@ type Logger interface {
 	BindJSON(name, value string) Logger
 
 	// Printf is to support log.Logger behavior.
-	Printf(format string, args ...interface{})
+	Printf(format string, args ...any)
 
 	// Info puts a message about some normal situation.
 	Info(msg string)
diff --git a/mtglib/init_internal_test.go b/mtglib/init_internal_test.go
index b182d57c69..50833e83c3 100644
--- a/mtglib/init_internal_test.go
+++ b/mtglib/init_internal_test.go
@@ -8,17 +8,17 @@ import (
 
 type NoopLogger struct{}
 
-func (n NoopLogger) Named(_ string) Logger             { return n }
-func (n NoopLogger) BindInt(_ string, _ int) Logger    { return n }
-func (n NoopLogger) BindStr(_, _ string) Logger        { return n }
-func (n NoopLogger) BindJSON(_, _ string) Logger       { return n }
-func (n NoopLogger) Printf(_ string, _ ...interface{}) {}
-func (n NoopLogger) Info(_ string)                     {}
-func (n NoopLogger) Warning(_ string)                  {}
-func (n NoopLogger) Debug(_ string)                    {}
-func (n NoopLogger) InfoError(_ string, _ error)       {}
-func (n NoopLogger) WarningError(_ string, _ error)    {}
-func (n NoopLogger) DebugError(_ string, _ error)      {}
+func (n NoopLogger) Named(_ string) Logger          { return n }
+func (n NoopLogger) BindInt(_ string, _ int) Logger { return n }
+func (n NoopLogger) BindStr(_, _ string) Logger     { return n }
+func (n NoopLogger) BindJSON(_, _ string) Logger    { return n }
+func (n NoopLogger) Printf(_ string, _ ...any)      {}
+func (n NoopLogger) Info(_ string)                  {}
+func (n NoopLogger) Warning(_ string)               {}
+func (n NoopLogger) Debug(_ string)                 {}
+func (n NoopLogger) InfoError(_ string, _ error)    {}
+func (n NoopLogger) WarningError(_ string, _ error) {}
+func (n NoopLogger) DebugError(_ string, _ error)   {}
 
 type EventStreamMock struct {
 	mock.Mock
diff --git a/mtglib/internal/faketls/client_hello.go b/mtglib/internal/faketls/client_hello.go
index d27d769cce..0e5e5b4a22 100644
--- a/mtglib/internal/faketls/client_hello.go
+++ b/mtglib/internal/faketls/client_hello.go
@@ -76,7 +76,7 @@ func ParseClientHello(secret, handshake []byte) (ClientHello, error) {
 
 	computedRandom := mac.Sum(nil)
 
-	for i := 0; i < RandomLen; i++ {
+	for i := range RandomLen {
 		computedRandom[i] ^= hello.Random[i]
 	}
 
diff --git a/mtglib/internal/faketls/pools.go b/mtglib/internal/faketls/pools.go
index 54183a0875..b1f4275c17 100644
--- a/mtglib/internal/faketls/pools.go
+++ b/mtglib/internal/faketls/pools.go
@@ -6,7 +6,7 @@ import (
 )
 
 var bytesBufferPool = sync.Pool{
-	New: func() interface{} {
+	New: func() any {
 		return &bytes.Buffer{}
 	},
 }
diff --git a/mtglib/internal/faketls/record/pools.go b/mtglib/internal/faketls/record/pools.go
index cc4739a5e3..4f758b7843 100644
--- a/mtglib/internal/faketls/record/pools.go
+++ b/mtglib/internal/faketls/record/pools.go
@@ -5,7 +5,7 @@ import (
 )
 
 var recordPool = sync.Pool{
-	New: func() interface{} {
+	New: func() any {
 		return &Record{}
 	},
 }
diff --git a/mtglib/internal/obfuscated2/handshake_frame.go b/mtglib/internal/obfuscated2/handshake_frame.go
index 8fec8897e3..0dd3c6ce5a 100644
--- a/mtglib/internal/obfuscated2/handshake_frame.go
+++ b/mtglib/internal/obfuscated2/handshake_frame.go
@@ -63,7 +63,7 @@ func (h *handshakeFrame) connectionType() []byte {
 func (h *handshakeFrame) invert() handshakeFrame {
 	copyFrame := *h
 
-	for i := 0; i < handshakeFrameLenKey+handshakeFrameLenIV; i++ {
+	for i := range handshakeFrameLenKey + handshakeFrameLenIV {
 		copyFrame.data[handshakeFrameOffsetKey+i] = h.data[handshakeFrameOffsetConnectionType-1-i]
 	}
 
diff --git a/mtglib/internal/obfuscated2/init_test.go b/mtglib/internal/obfuscated2/init_test.go
index 50d031c8ed..5aa85a99b9 100644
--- a/mtglib/internal/obfuscated2/init_test.go
+++ b/mtglib/internal/obfuscated2/init_test.go
@@ -117,7 +117,7 @@ func NewServerHandshakeTestData(t *testing.T) ServerHandshakeTestData {
 
 	serverEncryptedReverted := make([]byte, len(serverEncrypted))
 
-	for i := 0; i < 32+16; i++ {
+	for i := range 32 + 16 {
 		serverEncryptedReverted[8+i] = serverEncrypted[8+32+16-1-i]
 	}
 
diff --git a/mtglib/internal/obfuscated2/pools.go b/mtglib/internal/obfuscated2/pools.go
index f714262d1f..5f10fd2094 100644
--- a/mtglib/internal/obfuscated2/pools.go
+++ b/mtglib/internal/obfuscated2/pools.go
@@ -9,12 +9,12 @@ import (
 
 var (
 	sha256HasherPool = sync.Pool{
-		New: func() interface{} {
+		New: func() any {
 			return sha256.New()
 		},
 	}
 	bytesBufferPool = sync.Pool{
-		New: func() interface{} {
+		New: func() any {
 			return &bytes.Buffer{}
 		},
 	}
diff --git a/mtglib/internal/relay/init.go b/mtglib/internal/relay/init.go
index a0dcb0c3f9..8bcc66c9b8 100644
--- a/mtglib/internal/relay/init.go
+++ b/mtglib/internal/relay/init.go
@@ -5,5 +5,5 @@ const (
 )
 
 type Logger interface {
-	Printf(msg string, args ...interface{})
+	Printf(msg string, args ...any)
 }
diff --git a/mtglib/internal/relay/init_test.go b/mtglib/internal/relay/init_test.go
index e43244a88f..c884532e0a 100644
--- a/mtglib/internal/relay/init_test.go
+++ b/mtglib/internal/relay/init_test.go
@@ -2,4 +2,4 @@ package relay_test
 
 type loggerMock struct{}
 
-func (l loggerMock) Printf(format string, args ...interface{}) {}
+func (l loggerMock) Printf(format string, args ...any) {}
diff --git a/mtglib/internal/relay/pools.go b/mtglib/internal/relay/pools.go
index 49ac7acad1..db42933b65 100644
--- a/mtglib/internal/relay/pools.go
+++ b/mtglib/internal/relay/pools.go
@@ -3,7 +3,7 @@ package relay
 import "sync"
 
 var copyBufferPool = sync.Pool{
-	New: func() interface{} {
+	New: func() any {
 		rv := make([]byte, copyBufferSize)
 
 		return &rv
diff --git a/mtglib/internal/relay/relay.go b/mtglib/internal/relay/relay.go
index ac35cf94d3..060a05cd32 100644
--- a/mtglib/internal/relay/relay.go
+++ b/mtglib/internal/relay/relay.go
@@ -10,7 +10,7 @@ import (
 
 func Relay(ctx context.Context, log Logger, telegramConn, clientConn essentials.Conn) {
 	defer telegramConn.Close() //nolint: errcheck
-	defer clientConn.Close() //nolint: errcheck
+	defer clientConn.Close()   //nolint: errcheck
 
 	ctx, cancel := context.WithCancel(ctx)
 	defer cancel()
@@ -18,7 +18,7 @@ func Relay(ctx context.Context, log Logger, telegramConn, clientConn essentials.
 	go func() {
 		<-ctx.Done()
 		telegramConn.Close() //nolint: errcheck
-		clientConn.Close() //nolint: errcheck
+		clientConn.Close()   //nolint: errcheck
 	}()
 
 	closeChan := make(chan struct{})
diff --git a/mtglib/internal/telegram/telegram_internal_test.go b/mtglib/internal/telegram/telegram_internal_test.go
index 794e97adc2..a94bf15249 100644
--- a/mtglib/internal/telegram/telegram_internal_test.go
+++ b/mtglib/internal/telegram/telegram_internal_test.go
@@ -140,7 +140,7 @@ func (suite *TelegramTestSuite) TestUnknownPreferIP() {
 func (suite *TelegramTestSuite) TestFallbackDC() {
 	dcs := make([]int, 10)
 
-	for i := 0; i < len(dcs); i++ {
+	for i := range dcs {
 		dcs[i] = suite.t.GetFallbackDC()
 	}
 
diff --git a/mtglib/proxy.go b/mtglib/proxy.go
index e63f6ba29f..345a94cd47 100644
--- a/mtglib/proxy.go
+++ b/mtglib/proxy.go
@@ -315,7 +315,7 @@ func NewProxy(opts ProxyOpts) (*Proxy, error) {
 	}
 
 	pool, err := ants.NewPoolWithFunc(opts.getConcurrency(),
-		func(arg interface{}) {
+		func(arg any) {
 			proxy.ServeConn(arg.(essentials.Conn)) //nolint: forcetypeassert
 		},
 		ants.WithLogger(opts.getLogger("ants")),
diff --git a/mtglib/stream_context.go b/mtglib/stream_context.go
index 3c6a7399b3..3858282ba9 100644
--- a/mtglib/stream_context.go
+++ b/mtglib/stream_context.go
@@ -32,7 +32,7 @@ func (s *streamContext) Err() error {
 	return s.ctx.Err() //nolint: wrapcheck
 }
 
-func (s *streamContext) Value(key interface{}) interface{} {
+func (s *streamContext) Value(key any) any {
 	return s.ctx.Value(key)
 }
 
diff --git a/network/circuit_breaker_internal_test.go b/network/circuit_breaker_internal_test.go
index 16a844337d..fc7f67169c 100644
--- a/network/circuit_breaker_internal_test.go
+++ b/network/circuit_breaker_internal_test.go
@@ -59,7 +59,7 @@ func (suite *CircuitBreakerTestSuite) TestMultipleRunsOk() {
 		suite.ctxCancel()
 	}()
 
-	for i := 0; i < 5; i++ {
+	for range 5 {
 		go func() {
 			defer wg.Done()
 
diff --git a/network/load_balanced_socks5_test.go b/network/load_balanced_socks5_test.go
index 1d5e86c785..96298ac37f 100644
--- a/network/load_balanced_socks5_test.go
+++ b/network/load_balanced_socks5_test.go
@@ -64,7 +64,7 @@ func (suite *LoadBalancedSocks5TestSuite) TestCannotDial() {
 	})
 	suite.NoError(err)
 
-	for i := 0; i < network.ProxyDialerOpenThreshold*2; i++ {
+	for range network.ProxyDialerOpenThreshold * 2 {
 		_, err = lbDialer.Dial("tcp", "127.1.1.1:80")
 		suite.True(errors.Is(err, network.ErrCannotDialWithAllProxies))
 	}
diff --git a/network/network.go b/network/network.go
index 3f68b112e1..57b0f2e9d4 100644
--- a/network/network.go
+++ b/network/network.go
@@ -81,32 +81,28 @@ func (n *network) dnsResolve(protocol, address string) ([]string, error) {
 
 	switch protocol {
 	case "tcp", "tcp4":
-		wg.Add(1)
 
-		go func() {
-			defer wg.Done()
+		wg.Go(func() {
 
 			resolved := n.dns.LookupA(address)
 
 			mutex.Lock()
 			ips = append(ips, resolved...)
 			mutex.Unlock()
-		}()
+		})
 	}
 
 	switch protocol {
 	case "tcp", "tcp6":
-		wg.Add(1)
 
-		go func() {
-			defer wg.Done()
+		wg.Go(func() {
 
 			resolved := n.dns.LookupAAAA(address)
 
 			mutex.Lock()
 			ips = append(ips, resolved...)
 			mutex.Unlock()
-		}()
+		})
 	}
 
 	wg.Wait()
diff --git a/network/sockopts_unix.go b/network/sockopts_unix.go
index 75df3af722..29bfcb4646 100644
--- a/network/sockopts_unix.go
+++ b/network/sockopts_unix.go
@@ -1,5 +1,4 @@
 //go:build !windows
-// +build !windows
 
 package network
 
diff --git a/network/sockopts_windows.go b/network/sockopts_windows.go
index 32a702a3b2..b8cd910f57 100644
--- a/network/sockopts_windows.go
+++ b/network/sockopts_windows.go
@@ -1,5 +1,4 @@
 //go:build windows
-// +build windows
 
 package network
 
diff --git a/stats/pools.go b/stats/pools.go
index a8c962197c..f80286a7c0 100644
--- a/stats/pools.go
+++ b/stats/pools.go
@@ -3,7 +3,7 @@ package stats
 import "sync"
 
 var streamInfoPool = sync.Pool{
-	New: func() interface{} {
+	New: func() any {
 		return &streamInfo{
 			tags: make(map[string]string),
 		}
diff --git a/stats/statsd_test.go b/stats/statsd_test.go
index a8759bacf6..5587345b00 100644
--- a/stats/statsd_test.go
+++ b/stats/statsd_test.go
@@ -100,7 +100,7 @@ func (suite *StatsdTestSuite) SetupTest() {
 
 func (suite *StatsdTestSuite) TearDownTest() {
 	suite.statsd.Shutdown()
-	suite.factory.Close() //nolint: errcheck
+	suite.factory.Close()      //nolint: errcheck
 	suite.statsdServer.Close() //nolint: errcheck
 }