diff --git a/README.md b/README.md
index cd1af0c0..9a9b8e1c 100644
--- a/README.md
+++ b/README.md
@@ -331,7 +331,7 @@ allow_github_webhooks        = true
 | <a name="input_external_task_definition_updates"></a> [external\_task\_definition\_updates](#input\_external\_task\_definition\_updates) | Enable to allow the task definition to be updated outside of this Terraform module. This should be enabled when using a deployment tool such as ecs-deploy which updates the task definition and will then keep the ECS service using the latest version of the task definition. | `bool` | `false` | no |
 | <a name="input_extra_container_definitions"></a> [extra\_container\_definitions](#input\_extra\_container\_definitions) | A list of valid container definitions provided as a single valid JSON document. These will be provided as supplimentary to the main Atlantis container definition | `list(any)` | `[]` | no |
 | <a name="input_firelens_configuration"></a> [firelens\_configuration](#input\_firelens\_configuration) | The FireLens configuration for the container. This is used to specify and configure a log router for container logs. For more details, see https://docs.aws.amazon.com/AmazonECS/latest/APIReference/API_FirelensConfiguration.html | <pre>object({<br>    type    = string<br>    options = map(string)<br>  })</pre> | `null` | no |
-| <a name="input_github_webhooks_cidr_blocks"></a> [github\_webhooks\_cidr\_blocks](#input\_github\_webhooks\_cidr\_blocks) | List of CIDR blocks used by GitHub webhooks | `list(string)` | <pre>[<br>  "140.82.112.0/20",<br>  "185.199.108.0/22",<br>  "192.30.252.0/22"<br>]</pre> | no |
+| <a name="input_github_webhooks_cidr_blocks"></a> [github\_webhooks\_cidr\_blocks](#input\_github\_webhooks\_cidr\_blocks) | List of CIDR blocks used by GitHub webhooks | `list(string)` | <pre>[<br>  "140.82.112.0/20",<br>  "185.199.108.0/22",<br>  "192.30.252.0/22",<br>  "143.55.64.0/20"<br>]</pre> | no |
 | <a name="input_internal"></a> [internal](#input\_internal) | Whether the load balancer is internal or external | `bool` | `false` | no |
 | <a name="input_mount_points"></a> [mount\_points](#input\_mount\_points) | Container mount points. This is a list of maps, where each map should contain a `containerPath` and `sourceVolume`. The `readOnly` key is optional. | `list(any)` | `[]` | no |
 | <a name="input_name"></a> [name](#input\_name) | Name to use on all resources created (VPC, ALB, etc) | `string` | `"atlantis"` | no |
diff --git a/variables.tf b/variables.tf
index 80d0760f..5078ac1b 100644
--- a/variables.tf
+++ b/variables.tf
@@ -153,7 +153,7 @@ variable "allow_github_webhooks" {
 variable "github_webhooks_cidr_blocks" {
   description = "List of CIDR blocks used by GitHub webhooks" # This is hardcoded to avoid dependency on github provider. Source: https://api.github.com/meta
   type        = list(string)
-  default     = ["140.82.112.0/20", "185.199.108.0/22", "192.30.252.0/22"]
+  default     = ["140.82.112.0/20", "185.199.108.0/22", "192.30.252.0/22", "143.55.64.0/20"]
 }
 
 variable "whitelist_unauthenticated_cidr_blocks" {