diff --git a/variables.pkr.hcl b/variables.pkr.hcl
index 628635b..3e5e9fa 100644
--- a/variables.pkr.hcl
+++ b/variables.pkr.hcl
@@ -60,7 +60,7 @@ variable "block_device_size_gb" {
 variable "ecs_agent_version" {
   type        = string
   description = "ECS agent version to build AMI with."
-  default     = "1.83.0"
+  default     = "1.84.0"
 }
 
 variable "ecs_init_rev" {