diff --git a/README.md b/README.md
index b54c0f781..f5478cd2d 100644
--- a/README.md
+++ b/README.md
@@ -112,8 +112,8 @@ Then perform the following commands on the root folder:
 |------|-------------|------|---------|:--------:|
 | auto\_create\_subnetworks | When set to true, the network is created in 'auto subnet mode' and it will create a subnet for each region automatically across the 10.128.0.0/9 address range. When set to false, the network is created in 'custom subnet mode' so the user can explicitly connect subnetwork resources. | `bool` | `false` | no |
 | bgp\_always\_compare\_med | If set to true, the Cloud Router will use MED values from the peer even if the AS paths differ. Default is false. | `bool` | `false` | no |
-| bgp\_best\_path\_selection\_mode | Specifies the BGP best path selection mode. Valid values are `STANDARD` or `LEGACY`. Default is `STANDARD`. | `string` | `"STANDARD"` | no |
-| bgp\_inter\_region\_cost | Specifies the BGP inter-region cost mode. Valid values are `DEFAULT` or `ADD_COST_TO_MED`. Default is `DEFAULT`. | `string` | `"DEFAULT"` | no |
+| bgp\_best\_path\_selection\_mode | Specifies the BGP best path selection mode. Valid values are `STANDARD` or `LEGACY`. Default is `STANDARD`. | `string` | `"LEGACY"` | no |
+| bgp\_inter\_region\_cost | Specifies the BGP inter-region cost mode. Valid values are `DEFAULT` or `ADD_COST_TO_MED`. | `string` | `null` | no |
 | delete\_default\_internet\_gateway\_routes | If set, ensure that all routes within the network specified whose names begin with 'default-route' and with a next hop of 'default-internet-gateway' are deleted | `bool` | `false` | no |
 | description | An optional description of this resource. The resource must be recreated to modify this field. | `string` | `""` | no |
 | egress\_rules | List of egress rules. This will be ignored if variable 'rules' is non-empty | <pre>list(object({<br>    name                    = string<br>    description             = optional(string, null)<br>    disabled                = optional(bool, null)<br>    priority                = optional(number, null)<br>    destination_ranges      = optional(list(string), [])<br>    source_ranges           = optional(list(string), [])<br>    source_tags             = optional(list(string))<br>    source_service_accounts = optional(list(string))<br>    target_tags             = optional(list(string))<br>    target_service_accounts = optional(list(string))<br><br>    allow = optional(list(object({<br>      protocol = string<br>      ports    = optional(list(string))<br>    })), [])<br>    deny = optional(list(object({<br>      protocol = string<br>      ports    = optional(list(string))<br>    })), [])<br>    log_config = optional(object({<br>      metadata = string<br>    }))<br>  }))</pre> | `[]` | no |
diff --git a/modules/vpc/README.md b/modules/vpc/README.md
index 3860574b3..12e0e8097 100644
--- a/modules/vpc/README.md
+++ b/modules/vpc/README.md
@@ -30,8 +30,8 @@ module "vpc" {
 |------|-------------|------|---------|:--------:|
 | auto\_create\_subnetworks | When set to true, the network is created in 'auto subnet mode' and it will create a subnet for each region automatically across the 10.128.0.0/9 address range. When set to false, the network is created in 'custom subnet mode' so the user can explicitly connect subnetwork resources. | `bool` | `false` | no |
 | bgp\_always\_compare\_med | If set to true, the Cloud Router will use MED values from the peer even if the AS paths differ. Default is false. | `bool` | `false` | no |
-| bgp\_best\_path\_selection\_mode | Specifies the BGP best path selection mode. Valid values are `STANDARD` or `LEGACY`. Default is `STANDARD`. | `string` | `"STANDARD"` | no |
-| bgp\_inter\_region\_cost | Specifies the BGP inter-region cost mode. Valid values are `DEFAULT` or `ADD_COST_TO_MED`. Default is `DEFAULT`. | `string` | `"DEFAULT"` | no |
+| bgp\_best\_path\_selection\_mode | Specifies the BGP best path selection mode. Valid values are `STANDARD` or `LEGACY`. Default is `STANDARD`. | `string` | `"LEGACY"` | no |
+| bgp\_inter\_region\_cost | Specifies the BGP inter-region cost mode. Valid values are `DEFAULT` or `ADD_COST_TO_MED`. | `string` | `null` | no |
 | delete\_default\_internet\_gateway\_routes | If set, ensure that all routes within the network specified whose names begin with 'default-route' and with a next hop of 'default-internet-gateway' are deleted | `bool` | `false` | no |
 | description | An optional description of this resource. The resource must be recreated to modify this field. | `string` | `""` | no |
 | enable\_ipv6\_ula | Enabled IPv6 ULA, this is a permenant change and cannot be undone! (default 'false') | `bool` | `false` | no |
diff --git a/modules/vpc/variables.tf b/modules/vpc/variables.tf
index 5da5df727..04a6e43c1 100644
--- a/modules/vpc/variables.tf
+++ b/modules/vpc/variables.tf
@@ -99,11 +99,11 @@ variable "bgp_always_compare_med" {
 variable "bgp_best_path_selection_mode" {
   type        = string
   description = "Specifies the BGP best path selection mode. Valid values are `STANDARD` or `LEGACY`. Default is `STANDARD`."
-  default     = "STANDARD"
+  default     = "LEGACY"
 }
 
 variable "bgp_inter_region_cost" {
   type        = string
-  description = "Specifies the BGP inter-region cost mode. Valid values are `DEFAULT` or `ADD_COST_TO_MED`. Default is `DEFAULT`."
-  default     = "DEFAULT"
+  description = "Specifies the BGP inter-region cost mode. Valid values are `DEFAULT` or `ADD_COST_TO_MED`."
+  default     = null
 }
diff --git a/variables.tf b/variables.tf
index f69b413f4..f5f6c7b9d 100644
--- a/variables.tf
+++ b/variables.tf
@@ -221,11 +221,11 @@ variable "bgp_always_compare_med" {
 variable "bgp_best_path_selection_mode" {
   type        = string
   description = "Specifies the BGP best path selection mode. Valid values are `STANDARD` or `LEGACY`. Default is `STANDARD`."
-  default     = "STANDARD"
+  default     = "LEGACY"
 }
 
 variable "bgp_inter_region_cost" {
   type        = string
-  description = "Specifies the BGP inter-region cost mode. Valid values are `DEFAULT` or `ADD_COST_TO_MED`. Default is `DEFAULT`."
-  default     = "DEFAULT"
+  description = "Specifies the BGP inter-region cost mode. Valid values are `DEFAULT` or `ADD_COST_TO_MED`."
+  default     = null
 }