diff --git a/outputs.tf b/outputs.tf
index b210b90..8a5a38d 100644
--- a/outputs.tf
+++ b/outputs.tf
@@ -5,7 +5,7 @@ output "instance_id" {
 
 output "instance_private_ip" {
   description = "Compute instance private IP"
-  value       = yandex_compute_instance.this.network_interface.0.ip_address
+  value       = yandex_compute_instance.this.network_interface[0].ip_address
 }
 
 output "instance_public_ip" {
diff --git a/variables.tf b/variables.tf
index 97ee191..3cfcab0 100644
--- a/variables.tf
+++ b/variables.tf
@@ -103,6 +103,7 @@ variable "serial_port_enable" {
 
 variable "docker_compose" {
   description = "The key in the VM metadata that uses the docker-compose specification"
+  type        = string
   default     = null
 }
 
@@ -142,21 +143,21 @@ variable "preemptible" {
   default     = false
 }
 
-variable "placement_group_id" {
-  description = "Placement group ID"
-  type        = string
-  default     = null
-}
-
-variable "placement_affinity_rules" {
-  description = "List of host affinity rules"
-  type = list(object({
-    key   = string
-    op    = string
-    value = string
-  }))
-  default = []
-}
+# variable "placement_group_id" {
+#   description = "Placement group ID"
+#   type        = string
+#   default     = null
+# }
+#
+# variable "placement_affinity_rules" {
+#   description = "List of host affinity rules"
+#   type = list(object({
+#     key   = string
+#     op    = string
+#     value = string
+#   }))
+#   default = []
+# }
 
 #
 # vm image
diff --git a/versions.tf b/versions.tf
index 8e44575..f8ef30e 100644
--- a/versions.tf
+++ b/versions.tf
@@ -1,10 +1,12 @@
 terraform {
   required_providers {
     yandex = {
-      source = "yandex-cloud/yandex"
+      source  = "yandex-cloud/yandex"
+      version = ">= 0.72.0"
     }
     tls = {
-      source = "hashicorp/tls"
+      source  = "hashicorp/tls"
+      version = ">= 3.1.0"
     }
   }
   required_version = ">= 1.3"