diff --git a/cmd/neofs-ir/defaults.go b/cmd/neofs-ir/defaults.go
index c1383715cc..3b4f452282 100644
--- a/cmd/neofs-ir/defaults.go
+++ b/cmd/neofs-ir/defaults.go
@@ -71,7 +71,7 @@ func defaultConfiguration(cfg *viper.Viper) {
 	cfg.SetDefault("contracts.alphabet.jest", "")
 	cfg.SetDefault("contracts.alphabet.zhivete", "")
 	// gas native contract in LE
-	cfg.SetDefault("contracts.gas", "668e0c1f9d7b70a99dd9e06eadd4c784d641afbc")
+	cfg.SetDefault("contracts.gas", "b5df804bbadefea726afb5d3f4e8a6f6d32d2a20")
 
 	cfg.SetDefault("timers.epoch", "5s")
 	cfg.SetDefault("timers.emit", "30s")
diff --git a/cmd/neofs-node/config.go b/cmd/neofs-node/config.go
index 7256e6c826..f4181ceb36 100644
--- a/cmd/neofs-node/config.go
+++ b/cmd/neofs-node/config.go
@@ -11,6 +11,7 @@ import (
 	"sync"
 	"time"
 
+	"github.com/nspcc-dev/neo-go/pkg/encoding/fixedn"
 	"github.com/nspcc-dev/neo-go/pkg/util"
 	"github.com/nspcc-dev/neofs-api-go/pkg"
 	"github.com/nspcc-dev/neofs-api-go/pkg/netmap"
@@ -197,20 +198,20 @@ type cfgMorph struct {
 type cfgAccounting struct {
 	scriptHash util.Uint160
 
-	fee util.Fixed8
+	fee fixedn.Fixed8
 }
 
 type cfgContainer struct {
 	scriptHash util.Uint160
 
-	fee util.Fixed8
+	fee fixedn.Fixed8
 }
 
 type cfgNetmap struct {
 	scriptHash util.Uint160
 	wrapper    *nmwrapper.Wrapper
 
-	fee util.Fixed8
+	fee fixedn.Fixed8
 
 	parsers map[event.Type]event.Parser
 
@@ -299,15 +300,15 @@ func initCfg(path string) *cfg {
 		apiVersion: pkg.SDKVersion(),
 		cfgAccounting: cfgAccounting{
 			scriptHash: u160Accounting,
-			fee:        util.Fixed8(viperCfg.GetInt(cfgAccountingFee)),
+			fee:        fixedn.Fixed8(viperCfg.GetInt(cfgAccountingFee)),
 		},
 		cfgContainer: cfgContainer{
 			scriptHash: u160Container,
-			fee:        util.Fixed8(viperCfg.GetInt(cfgContainerFee)),
+			fee:        fixedn.Fixed8(viperCfg.GetInt(cfgContainerFee)),
 		},
 		cfgNetmap: cfgNetmap{
 			scriptHash:          u160Netmap,
-			fee:                 util.Fixed8(viperCfg.GetInt(cfgNetmapFee)),
+			fee:                 fixedn.Fixed8(viperCfg.GetInt(cfgNetmapFee)),
 			state:               state,
 			reBootstrapInterval: viperCfg.GetUint64(cfgReBootstrapInterval),
 			reBootstrapEnabled:  viperCfg.GetBool(cfgReBootstrapEnabled),
diff --git a/go.mod b/go.mod
index bb73023163..a22558e120 100644
--- a/go.mod
+++ b/go.mod
@@ -16,7 +16,7 @@ require (
 	github.com/multiformats/go-multiaddr-net v0.1.2 // v0.1.1 => v0.1.2
 	github.com/multiformats/go-multihash v0.0.13 // indirect
 	github.com/nspcc-dev/hrw v1.0.9
-	github.com/nspcc-dev/neo-go v0.91.1-pre.0.20201030072836-71216865717b
+	github.com/nspcc-dev/neo-go v0.91.1-pre.0.20201215101847-7c2257803f32
 	github.com/nspcc-dev/neofs-api-go v1.21.2
 	github.com/nspcc-dev/neofs-crypto v0.3.0
 	github.com/nspcc-dev/tzhash v1.4.0
diff --git a/go.sum b/go.sum
index 2ade4a85da..f41515d103 100644
Binary files a/go.sum and b/go.sum differ
diff --git a/pkg/innerring/innerring.go b/pkg/innerring/innerring.go
index 7d46498c86..ad4db2a9c8 100644
--- a/pkg/innerring/innerring.go
+++ b/pkg/innerring/innerring.go
@@ -5,6 +5,7 @@ import (
 	"crypto/ecdsa"
 
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
+	"github.com/nspcc-dev/neo-go/pkg/encoding/fixedn"
 	"github.com/nspcc-dev/neo-go/pkg/util"
 	crypto "github.com/nspcc-dev/neofs-crypto"
 	"github.com/nspcc-dev/neofs-node/pkg/innerring/invoke"
@@ -258,7 +259,7 @@ func New(ctx context.Context, log *zap.Logger, cfg *viper.Viper) (*Server, error
 		Converter:         &server.precision,
 		MintEmitCacheSize: cfg.GetInt("emit.mint.cache_size"),
 		MintEmitThreshold: cfg.GetUint64("emit.mint.threshold"),
-		MintEmitValue:     util.Fixed8(cfg.GetInt64("emit.mint.value")),
+		MintEmitValue:     fixedn.Fixed8(cfg.GetInt64("emit.mint.value")),
 	})
 	if err != nil {
 		return nil, err
diff --git a/pkg/innerring/processors/alphabet/process_emit.go b/pkg/innerring/processors/alphabet/process_emit.go
index dc5552c28d..f5885c46b6 100644
--- a/pkg/innerring/processors/alphabet/process_emit.go
+++ b/pkg/innerring/processors/alphabet/process_emit.go
@@ -4,7 +4,7 @@ import (
 	"crypto/elliptic"
 
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
-	"github.com/nspcc-dev/neo-go/pkg/util"
+	"github.com/nspcc-dev/neo-go/pkg/encoding/fixedn"
 	"github.com/nspcc-dev/neofs-node/pkg/innerring/invoke"
 	"go.uber.org/zap"
 )
@@ -50,7 +50,7 @@ func (np *Processor) processEmit() {
 		return
 	}
 
-	gasPerNode := util.Fixed8(np.storageEmission / uint64(ln))
+	gasPerNode := fixedn.Fixed8(np.storageEmission / uint64(ln))
 
 	for i := range networkMap.Nodes {
 		keyBytes := networkMap.Nodes[i].PublicKey()
diff --git a/pkg/innerring/processors/neofs/processor.go b/pkg/innerring/processors/neofs/processor.go
index 3608b4695e..15ea9547c1 100644
--- a/pkg/innerring/processors/neofs/processor.go
+++ b/pkg/innerring/processors/neofs/processor.go
@@ -4,6 +4,7 @@ import (
 	"sync"
 
 	lru "github.com/hashicorp/golang-lru"
+	"github.com/nspcc-dev/neo-go/pkg/encoding/fixedn"
 	"github.com/nspcc-dev/neo-go/pkg/util"
 	"github.com/nspcc-dev/neofs-node/pkg/morph/client"
 	"github.com/nspcc-dev/neofs-node/pkg/morph/event"
@@ -43,7 +44,7 @@ type (
 		mintEmitLock      *sync.Mutex
 		mintEmitCache     *lru.Cache
 		mintEmitThreshold uint64
-		mintEmitValue     util.Fixed8
+		mintEmitValue     fixedn.Fixed8
 	}
 
 	// Params of the processor constructor.
@@ -59,7 +60,7 @@ type (
 		Converter         PrecisionConverter
 		MintEmitCacheSize int
 		MintEmitThreshold uint64 // in epochs
-		MintEmitValue     util.Fixed8
+		MintEmitValue     fixedn.Fixed8
 	}
 )
 
diff --git a/pkg/morph/client/client.go b/pkg/morph/client/client.go
index ab61efde8b..0d1aed3f62 100644
--- a/pkg/morph/client/client.go
+++ b/pkg/morph/client/client.go
@@ -2,6 +2,7 @@ package client
 
 import (
 	"github.com/nspcc-dev/neo-go/pkg/core/transaction"
+	"github.com/nspcc-dev/neo-go/pkg/encoding/fixedn"
 	"github.com/nspcc-dev/neo-go/pkg/rpc/client"
 	sc "github.com/nspcc-dev/neo-go/pkg/smartcontract"
 	"github.com/nspcc-dev/neo-go/pkg/util"
@@ -42,7 +43,7 @@ var errScriptDecode = errors.New("could not decode invocation script from neo no
 
 // Invoke invokes contract method by sending transaction into blockchain.
 // Supported args types: int64, string, util.Uint160, []byte and bool.
-func (c *Client) Invoke(contract util.Uint160, fee util.Fixed8, method string, args ...interface{}) error {
+func (c *Client) Invoke(contract util.Uint160, fee fixedn.Fixed8, method string, args ...interface{}) error {
 	params := make([]sc.Parameter, 0, len(args))
 
 	for i := range args {
@@ -120,8 +121,8 @@ func (c *Client) TestInvoke(contract util.Uint160, method string, args ...interf
 }
 
 // TransferGas to the receiver from local wallet
-func (c *Client) TransferGas(receiver util.Uint160, amount util.Fixed8) error {
-	txHash, err := c.client.TransferNEP5(c.acc, receiver, c.gas, int64(amount), 0)
+func (c *Client) TransferGas(receiver util.Uint160, amount fixedn.Fixed8) error {
+	txHash, err := c.client.TransferNEP17(c.acc, receiver, c.gas, int64(amount), 0)
 	if err != nil {
 		return err
 	}
diff --git a/pkg/morph/client/static.go b/pkg/morph/client/static.go
index 404d546321..f4db5cedfe 100644
--- a/pkg/morph/client/static.go
+++ b/pkg/morph/client/static.go
@@ -3,6 +3,7 @@ package client
 import (
 	"errors"
 
+	"github.com/nspcc-dev/neo-go/pkg/encoding/fixedn"
 	"github.com/nspcc-dev/neo-go/pkg/util"
 	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
 )
@@ -19,7 +20,7 @@ type StaticClient struct {
 
 	scScriptHash util.Uint160 // contract script-hash
 
-	fee util.Fixed8 // invocation fee
+	fee fixedn.Fixed8 // invocation fee
 }
 
 // ErrNilStaticClient is returned by functions that expect
@@ -29,7 +30,7 @@ var ErrNilStaticClient = errors.New("static client is nil")
 // NewStatic creates, initializes and returns the StaticClient instance.
 //
 // If provided Client instance is nil, ErrNilClient is returned.
-func NewStatic(client *Client, scriptHash util.Uint160, fee util.Fixed8) (*StaticClient, error) {
+func NewStatic(client *Client, scriptHash util.Uint160, fee fixedn.Fixed8) (*StaticClient, error) {
 	if client == nil {
 		return nil, ErrNilClient
 	}