diff --git a/cmd/neofs-node/morph.go b/cmd/neofs-node/morph.go
index c4cfda68..7190026f 100644
--- a/cmd/neofs-node/morph.go
+++ b/cmd/neofs-node/morph.go
@@ -133,9 +133,14 @@ func makeNotaryDeposit(c *cfg) (util.Uint256, error) {
 		return util.Uint256{}, fmt.Errorf("could not calculate notary deposit: %w", err)
 	}
 
+	epochDur, err := c.cfgNetmap.wrapper.EpochDuration()
+	if err != nil {
+		return util.Uint256{}, fmt.Errorf("could not get current epoch duration: %w", err)
+	}
+
 	return c.cfgMorph.client.DepositNotary(
 		depositAmount,
-		c.cfgMorph.notaryDepositDuration+notaryDepositExtraBlocks,
+		uint32(epochDur)+notaryDepositExtraBlocks,
 	)
 }
 
diff --git a/cmd/neofs-node/netmap.go b/cmd/neofs-node/netmap.go
index 206e3421..73ad33a7 100644
--- a/cmd/neofs-node/netmap.go
+++ b/cmd/neofs-node/netmap.go
@@ -7,7 +7,6 @@ import (
 	netmapSDK "github.com/nspcc-dev/neofs-api-go/pkg/netmap"
 	netmapV2 "github.com/nspcc-dev/neofs-api-go/v2/netmap"
 	netmapGRPC "github.com/nspcc-dev/neofs-api-go/v2/netmap/grpc"
-	morphconfig "github.com/nspcc-dev/neofs-node/cmd/neofs-node/config/morph"
 	"github.com/nspcc-dev/neofs-node/pkg/core/netmap"
 	"github.com/nspcc-dev/neofs-node/pkg/morph/event"
 	netmapEvent "github.com/nspcc-dev/neofs-node/pkg/morph/event/netmap"
@@ -148,8 +147,6 @@ func initNetmapService(c *cfg) {
 	})
 
 	if c.cfgMorph.notaryEnabled {
-		c.cfgMorph.notaryDepositDuration = morphconfig.Notary(c.appCfg).Duration()
-
 		addNewEpochAsyncNotificationHandler(c, func(ev event.Event) {
 			_, err := makeNotaryDeposit(c)
 			if err != nil {