diff --git a/README.md b/README.md
index 56e4b52..09dc058 100644
--- a/README.md
+++ b/README.md
@@ -65,7 +65,7 @@ No resources.
 | <a name="input_install_materialize_operator"></a> [install\_materialize\_operator](#input\_install\_materialize\_operator) | Whether to install the Materialize operator | `bool` | `true` | no |
 | <a name="input_install_metrics_server"></a> [install\_metrics\_server](#input\_install\_metrics\_server) | Whether to install the metrics-server for the Materialize Console. Defaults to false since GKE installs one by default in the kube-system namespace. Only set to true if the GKE cluster was deployed with [monitoring explicitly turned off](https://cloud.google.com/kubernetes-engine/docs/how-to/configure-metrics#:~:text=To%20disable%20system%20metric%20collection,for%20the%20%2D%2Dmonitoring%20flag). Refer to the [GKE docs](https://cloud.google.com/kubernetes-engine/docs/how-to/configure-metrics#:~:text=To%20disable%20system%20metric%20collection,for%20the%20%2D%2Dmonitoring%20flag) for more information, including impact to GKE customer support efforts. | `bool` | `false` | no |
 | <a name="input_labels"></a> [labels](#input\_labels) | Labels to apply to all resources | `map(string)` | `{}` | no |
-| <a name="input_materialize_instances"></a> [materialize\_instances](#input\_materialize\_instances) | Configuration for Materialize instances | <pre>list(object({<br/>    name                    = string<br/>    namespace               = optional(string)<br/>    database_name           = string<br/>    create_database         = optional(bool, true)<br/>    environmentd_version    = optional(string, "v0.130.4")<br/>    cpu_request             = optional(string, "1")<br/>    memory_request          = optional(string, "1Gi")<br/>    memory_limit            = optional(string, "1Gi")<br/>    in_place_rollout        = optional(bool, false)<br/>    request_rollout         = optional(string)<br/>    force_rollout           = optional(string)<br/>    balancer_memory_request = optional(string, "256Mi")<br/>    balancer_memory_limit   = optional(string, "256Mi")<br/>    balancer_cpu_request    = optional(string, "100m")<br/>  }))</pre> | `[]` | no |
+| <a name="input_materialize_instances"></a> [materialize\_instances](#input\_materialize\_instances) | Configuration for Materialize instances | <pre>list(object({<br/>    name                    = string<br/>    namespace               = optional(string)<br/>    database_name           = string<br/>    create_database         = optional(bool, true)<br/>    environmentd_version    = optional(string)<br/>    cpu_request             = optional(string, "1")<br/>    memory_request          = optional(string, "1Gi")<br/>    memory_limit            = optional(string, "1Gi")<br/>    in_place_rollout        = optional(bool, false)<br/>    request_rollout         = optional(string)<br/>    force_rollout           = optional(string)<br/>    balancer_memory_request = optional(string, "256Mi")<br/>    balancer_memory_limit   = optional(string, "256Mi")<br/>    balancer_cpu_request    = optional(string, "100m")<br/>  }))</pre> | `[]` | no |
 | <a name="input_namespace"></a> [namespace](#input\_namespace) | Kubernetes namespace for Materialize | `string` | `"materialize"` | no |
 | <a name="input_network_config"></a> [network\_config](#input\_network\_config) | Network configuration for the GKE cluster | <pre>object({<br/>    subnet_cidr   = string<br/>    pods_cidr     = string<br/>    services_cidr = string<br/>  })</pre> | n/a | yes |
 | <a name="input_operator_namespace"></a> [operator\_namespace](#input\_operator\_namespace) | Namespace for the Materialize operator | `string` | `"materialize"` | no |
diff --git a/examples/simple/main.tf b/examples/simple/main.tf
index 62212a9..eca427b 100644
--- a/examples/simple/main.tf
+++ b/examples/simple/main.tf
@@ -151,7 +151,7 @@ variable "materialize_instances" {
     namespace               = optional(string)
     database_name           = string
     create_database         = optional(bool, true)
-    environmentd_version    = optional(string, "v0.130.4")
+    environmentd_version    = optional(string)
     cpu_request             = optional(string, "1")
     memory_request          = optional(string, "1Gi")
     memory_limit            = optional(string, "1Gi")
diff --git a/variables.tf b/variables.tf
index 6e1f488..b1090b7 100644
--- a/variables.tf
+++ b/variables.tf
@@ -108,7 +108,7 @@ variable "materialize_instances" {
     namespace               = optional(string)
     database_name           = string
     create_database         = optional(bool, true)
-    environmentd_version    = optional(string, "v0.130.4")
+    environmentd_version    = optional(string)
     cpu_request             = optional(string, "1")
     memory_request          = optional(string, "1Gi")
     memory_limit            = optional(string, "1Gi")