diff --git a/frostfsid/frostfsid_contract.go b/frostfsid/frostfsid_contract.go
index 15099ab..250deeb 100644
--- a/frostfsid/frostfsid_contract.go
+++ b/frostfsid/frostfsid_contract.go
@@ -103,7 +103,8 @@ func _deploy(data any, isUpdate bool) {
 	ctx := storage.GetContext()
 
 	args := data.(struct {
-		admin interop.Hash160
+		admin   interop.Hash160
+		version int
 	})
 
 	if args.admin != nil {
@@ -114,6 +115,7 @@ func _deploy(data any, isUpdate bool) {
 	}
 
 	if isUpdate {
+		common.CheckVersion(args.version)
 		it := storage.Find(ctx, subjectKeysPrefix, storage.ValuesOnly)
 		for iterator.Next(it) {
 			subjectRaw := iterator.Value(it)