diff --git a/alphabet/alphabet_contract.go b/alphabet/alphabet_contract.go
index 231795b..7a95c74 100644
--- a/alphabet/alphabet_contract.go
+++ b/alphabet/alphabet_contract.go
@@ -35,6 +35,8 @@ func OnNEP17Payment(from interop.Hash160, amount int, data interface{}) {
 func _deploy(data interface{}, isUpdate bool) {
 	ctx := storage.GetContext()
 	if isUpdate {
+		args := data.([]interface{})
+		common.CheckVersion(args[len(args)-1].(int))
 		storage.Delete(ctx, common.LegacyOwnerKey)
 		return
 	}
diff --git a/audit/audit_contract.go b/audit/audit_contract.go
index 994cd7f..157dc7a 100644
--- a/audit/audit_contract.go
+++ b/audit/audit_contract.go
@@ -45,6 +45,8 @@ const (
 func _deploy(data interface{}, isUpdate bool) {
 	ctx := storage.GetContext()
 	if isUpdate {
+		args := data.([]interface{})
+		common.CheckVersion(args[len(args)-1].(int))
 		storage.Delete(ctx, common.LegacyOwnerKey)
 		return
 	}
diff --git a/balance/balance_contract.go b/balance/balance_contract.go
index fbf25b0..8c53079 100644
--- a/balance/balance_contract.go
+++ b/balance/balance_contract.go
@@ -61,6 +61,8 @@ func init() {
 func _deploy(data interface{}, isUpdate bool) {
 	ctx := storage.GetContext()
 	if isUpdate {
+		args := data.([]interface{})
+		common.CheckVersion(args[len(args)-1].(int))
 		storage.Delete(ctx, common.LegacyOwnerKey)
 		return
 	}
diff --git a/container/container_contract.go b/container/container_contract.go
index cecbe50..f00bbc9 100644
--- a/container/container_contract.go
+++ b/container/container_contract.go
@@ -84,6 +84,8 @@ func OnNEP11Payment(a interop.Hash160, b int, c []byte, d interface{}) {
 func _deploy(data interface{}, isUpdate bool) {
 	ctx := storage.GetContext()
 	if isUpdate {
+		args := data.([]interface{})
+		common.CheckVersion(args[len(args)-1].(int))
 		storage.Delete(ctx, common.LegacyOwnerKey)
 		return
 	}
diff --git a/neofs/neofs_contract.go b/neofs/neofs_contract.go
index 14a082d..88d737e 100644
--- a/neofs/neofs_contract.go
+++ b/neofs/neofs_contract.go
@@ -47,6 +47,9 @@ var (
 // _deploy sets up initial alphabet node keys.
 func _deploy(data interface{}, isUpdate bool) {
 	if isUpdate {
+		args := data.([]interface{})
+		common.CheckVersion(args[len(args)-1].(int))
+
 		ctx := storage.GetContext()
 		nodes := getNodes(ctx, candidatesKey)
 		storage.Delete(ctx, candidatesKey)
diff --git a/neofsid/neofsid_contract.go b/neofsid/neofsid_contract.go
index ca28d35..4720c00 100644
--- a/neofsid/neofsid_contract.go
+++ b/neofsid/neofsid_contract.go
@@ -32,6 +32,8 @@ func _deploy(data interface{}, isUpdate bool) {
 	ctx := storage.GetContext()
 
 	if isUpdate {
+		args := data.([]interface{})
+		common.CheckVersion(args[len(args)-1].(int))
 		storage.Delete(ctx, common.LegacyOwnerKey)
 		return
 	}
diff --git a/netmap/netmap_contract.go b/netmap/netmap_contract.go
index 7ce831d..4cd36be 100644
--- a/netmap/netmap_contract.go
+++ b/netmap/netmap_contract.go
@@ -68,6 +68,7 @@ func _deploy(data interface{}, isUpdate bool) {
 		addrContainer  interop.Hash160
 		keys           []interop.PublicKey
 		config         [][]byte
+		version        int
 	})
 
 	ln := len(args.config)
@@ -83,6 +84,7 @@ func _deploy(data interface{}, isUpdate bool) {
 	}
 
 	if isUpdate {
+		common.CheckVersion(args.version)
 		storage.Delete(ctx, common.LegacyOwnerKey)
 		return
 	}
diff --git a/nns/nns_contract.go b/nns/nns_contract.go
index 54a8e34..edda2f7 100644
--- a/nns/nns_contract.go
+++ b/nns/nns_contract.go
@@ -90,6 +90,9 @@ func Update(nef []byte, manifest string, data interface{}) {
 // _deploy initializes defaults (total supply and registration price) on contract deploy.
 func _deploy(data interface{}, isUpdate bool) {
 	if isUpdate {
+		args := data.([]interface{})
+		common.CheckVersion(args[len(args)-1].(int))
+
 		ctx := storage.GetContext()
 		committee := common.CommitteeAddress()
 		it := storage.Find(ctx, []byte{prefixRoot}, storage.KeysOnly|storage.RemovePrefix)
diff --git a/processing/processing_contract.go b/processing/processing_contract.go
index 1bf6c78..fb81a71 100644
--- a/processing/processing_contract.go
+++ b/processing/processing_contract.go
@@ -28,6 +28,8 @@ func OnNEP17Payment(from interop.Hash160, amount int, data interface{}) {
 
 func _deploy(data interface{}, isUpdate bool) {
 	if isUpdate {
+		args := data.([]interface{})
+		common.CheckVersion(args[len(args)-1].(int))
 		return
 	}
 
diff --git a/proxy/proxy_contract.go b/proxy/proxy_contract.go
index 9841010..fe357a7 100644
--- a/proxy/proxy_contract.go
+++ b/proxy/proxy_contract.go
@@ -19,9 +19,11 @@ func OnNEP17Payment(from interop.Hash160, amount int, data interface{}) {
 	}
 }
 
-func _deploy(_ interface{}, isUpdate bool) {
-	ctx := storage.GetContext()
+func _deploy(data interface{}, isUpdate bool) {
 	if isUpdate {
+		ctx := storage.GetContext()
+		args := data.([]interface{})
+		common.CheckVersion(args[len(args)-1].(int))
 		storage.Delete(ctx, common.LegacyOwnerKey)
 		return
 	}
diff --git a/reputation/reputation_contract.go b/reputation/reputation_contract.go
index a49475f..c434570 100644
--- a/reputation/reputation_contract.go
+++ b/reputation/reputation_contract.go
@@ -22,6 +22,9 @@ func _deploy(data interface{}, isUpdate bool) {
 	ctx := storage.GetContext()
 
 	if isUpdate {
+		args := data.([]interface{})
+		common.CheckVersion(args[len(args)-1].(int))
+
 		// Storage migration.
 		storage.Delete(ctx, []byte("contractOwner"))
 
diff --git a/subnet/subnet_contract.go b/subnet/subnet_contract.go
index 3e7ce6d..99c7fc1 100644
--- a/subnet/subnet_contract.go
+++ b/subnet/subnet_contract.go
@@ -58,6 +58,8 @@ const (
 // _deploy function sets up initial list of inner ring public keys.
 func _deploy(data interface{}, isUpdate bool) {
 	if isUpdate {
+		args := data.([]interface{})
+		common.CheckVersion(args[len(args)-1].(int))
 		return
 	}