diff --git a/go.mod b/go.mod
index 20077c5f..8082a68e 100644
--- a/go.mod
+++ b/go.mod
@@ -13,7 +13,7 @@ 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/neo-go v0.91.1-pre.0.20200827184617-7560aa345a78
-	github.com/nspcc-dev/neofs-api-go v1.3.1-0.20200902121740-5a6dff8c83ba
+	github.com/nspcc-dev/neofs-api-go v1.3.1-0.20200911095622-47fd771ee4c5
 	github.com/nspcc-dev/neofs-crypto v0.3.0
 	github.com/panjf2000/ants/v2 v2.3.0
 	github.com/pkg/errors v0.9.1
diff --git a/go.sum b/go.sum
index f5e29c90..86b76638 100644
Binary files a/go.sum and b/go.sum differ
diff --git a/pkg/core/object/object.go b/pkg/core/object/object.go
index 6b05c92a..faffd185 100644
--- a/pkg/core/object/object.go
+++ b/pkg/core/object/object.go
@@ -17,7 +17,12 @@ type Object struct {
 // MarshalStableV2 marshals Object to v2 binary format.
 func (o *Object) MarshalStableV2() ([]byte, error) {
 	if o != nil {
-		return o.ToV2().StableMarshal(nil)
+		v2, err := o.ToV2(nil) // fixme: remove
+		if err != nil {
+			return nil, err
+		}
+
+		return v2.StableMarshal(nil)
 	}
 
 	return nil, nil