diff --git a/alphabet/alphabet_contract.go b/alphabet/alphabet_contract.go
index 8a85ef7..f3c0092 100644
--- a/alphabet/alphabet_contract.go
+++ b/alphabet/alphabet_contract.go
@@ -34,6 +34,13 @@ func OnNEP17Payment(from interop.Hash160, amount int, data interface{}) {
 
 func _deploy(data interface{}, isUpdate bool) {
 	if isUpdate {
+		ctx := storage.GetContext()
+		storage.Delete(ctx, "ballots")
+		storage.Put(ctx, notaryDisabledKey, false)
+
+		proxyContract := data.([]interface{})[0] // better to hardcode it
+		storage.Put(ctx, proxyKey, proxyContract)
+
 		return
 	}
 
diff --git a/audit/audit_contract.go b/audit/audit_contract.go
index cfa3995..7306d3f 100644
--- a/audit/audit_contract.go
+++ b/audit/audit_contract.go
@@ -44,6 +44,10 @@ const (
 
 func _deploy(data interface{}, isUpdate bool) {
 	if isUpdate {
+		ctx := storage.GetContext()
+		storage.Delete(ctx, "ballots")
+		storage.Put(ctx, notaryDisabledKey, false)
+
 		return
 	}
 
diff --git a/balance/balance_contract.go b/balance/balance_contract.go
index 8ac9f5d..f4926de 100644
--- a/balance/balance_contract.go
+++ b/balance/balance_contract.go
@@ -60,6 +60,10 @@ func init() {
 
 func _deploy(data interface{}, isUpdate bool) {
 	if isUpdate {
+		ctx := storage.GetContext()
+		storage.Delete(ctx, "ballots")
+		storage.Put(ctx, notaryDisabledKey, false)
+
 		return
 	}
 
diff --git a/container/container_contract.go b/container/container_contract.go
index 10b7e5b..777329d 100644
--- a/container/container_contract.go
+++ b/container/container_contract.go
@@ -94,6 +94,9 @@ func _deploy(data interface{}, isUpdate bool) {
 	})
 
 	if isUpdate {
+		storage.Delete(ctx, "ballots")
+		storage.Put(ctx, notaryDisabledKey, false)
+
 		return
 	}
 
diff --git a/neofsid/neofsid_contract.go b/neofsid/neofsid_contract.go
index 8fc1e2f..782c278 100644
--- a/neofsid/neofsid_contract.go
+++ b/neofsid/neofsid_contract.go
@@ -6,7 +6,6 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/interop/iterator"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/crypto"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
-	"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
 	"github.com/nspcc-dev/neofs-contract/common"
@@ -33,19 +32,9 @@ func _deploy(data interface{}, isUpdate bool) {
 	ctx := storage.GetContext()
 
 	if isUpdate {
-		it := storage.Find(ctx, []byte{}, storage.None)
-		for iterator.Next(it) {
-			kv := iterator.Value(it).([][]byte)
-			// V2 format
-			if len(kv[0]) == ownerSize {
-				info := std.Deserialize(kv[1]).(UserInfo)
-				key := append([]byte{ownerKeysPrefix}, kv[0]...)
-				for i := range info.Keys {
-					storage.Put(ctx, append(key, info.Keys[i]...), []byte{1})
-				}
-				storage.Delete(ctx, kv[0])
-			}
-		}
+		storage.Delete(ctx, "ballots")
+		storage.Put(ctx, notaryDisabledKey, false)
+
 		return
 	}
 
diff --git a/netmap/netmap_contract.go b/netmap/netmap_contract.go
index fbd6796..69d63eb 100644
--- a/netmap/netmap_contract.go
+++ b/netmap/netmap_contract.go
@@ -83,6 +83,9 @@ func _deploy(data interface{}, isUpdate bool) {
 	}
 
 	if isUpdate {
+		storage.Delete(ctx, "ballots")
+		storage.Put(ctx, notaryDisabledKey, false)
+
 		return
 	}
 
diff --git a/reputation/reputation_contract.go b/reputation/reputation_contract.go
index a49475f..23262cb 100644
--- a/reputation/reputation_contract.go
+++ b/reputation/reputation_contract.go
@@ -6,7 +6,6 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/interop/convert"
 	"github.com/nspcc-dev/neo-go/pkg/interop/iterator"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
-	"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
 	"github.com/nspcc-dev/neofs-contract/common"
@@ -22,31 +21,9 @@ func _deploy(data interface{}, isUpdate bool) {
 	ctx := storage.GetContext()
 
 	if isUpdate {
-		// Storage migration.
-		storage.Delete(ctx, []byte("contractOwner"))
+		storage.Delete(ctx, "ballots")
+		storage.Put(ctx, notaryDisabledKey, false)
 
-		it := storage.Find(ctx, []byte{}, storage.None)
-		for iterator.Next(it) {
-			kv := iterator.Value(it).([][]byte)
-			if string(kv[0]) == notaryDisabledKey {
-				continue
-			}
-			if string(kv[0]) == "ballots" {
-				continue
-			}
-
-			storage.Delete(ctx, kv[0])
-
-			rawValues := std.Deserialize(kv[1]).([][]byte)
-			key := getReputationKey(reputationCountPrefix, kv[0])
-			storage.Put(ctx, key, len(rawValues))
-
-			key[0] = reputationValuePrefix
-			for i := range rawValues {
-				newKey := append(key, convert.ToBytes(i)...)
-				storage.Put(ctx, newKey, rawValues[i])
-			}
-		}
 		return
 	}
 
diff --git a/subnet/subnet_contract.go b/subnet/subnet_contract.go
index 2743c17..1a7aad3 100644
--- a/subnet/subnet_contract.go
+++ b/subnet/subnet_contract.go
@@ -58,6 +58,10 @@ const (
 // _deploy function sets up initial list of inner ring public keys.
 func _deploy(data interface{}, isUpdate bool) {
 	if isUpdate {
+		ctx := storage.GetContext()
+		storage.Delete(ctx, "ballots")
+		storage.Put(ctx, notaryDisabledKey, false)
+
 		return
 	}