diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8522e719e..3e0520e94 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 - Add `space_ids` attribute to all Fleet resources to support space-aware Fleet resource management ([#1390](https://github.com/elastic/terraform-provider-elasticstack/pull/1390))
 - Add new `elasticstack_elasticsearch_ml_job_state` resource ([#1337](https://github.com/elastic/terraform-provider-elasticstack/pull/1337))
 - Add new `elasticstack_elasticsearch_ml_datafeed_state` resource ([#1422](https://github.com/elastic/terraform-provider-elasticstack/pull/1422))
+- Make `hosts` attribute required in `elasticstack_fleet_output` resource ([#1450](https://github.com/elastic/terraform-provider-elasticstack/pull/1450/files)) 
 
 ## [0.12.1] - 2025-10-22
 - Fix regression restricting the characters in an `elasticstack_elasticsearch_role_mapping` `name`. ([#1373](https://github.com/elastic/terraform-provider-elasticstack/pull/1373))
diff --git a/docs/resources/fleet_output.md b/docs/resources/fleet_output.md
index 0d57c199a..546d73e60 100644
--- a/docs/resources/fleet_output.md
+++ b/docs/resources/fleet_output.md
@@ -200,6 +200,7 @@ resource "elasticstack_fleet_output" "kafka_round_robin" {
 
 ### Required
 
+- `hosts` (List of String) A list of hosts.
 - `name` (String) The name of the output.
 - `type` (String) The output type.
 
@@ -210,7 +211,6 @@ resource "elasticstack_fleet_output" "kafka_round_robin" {
 - `config_yaml` (String, Sensitive) Advanced YAML configuration. YAML settings here will be added to the output section of each agent policy.
 - `default_integrations` (Boolean) Make this output the default for agent integrations.
 - `default_monitoring` (Boolean) Make this output the default for agent monitoring.
-- `hosts` (List of String) A list of hosts.
 - `kafka` (Attributes) Kafka-specific configuration. (see [below for nested schema](#nestedatt--kafka))
 - `output_id` (String) Unique identifier of the output.
 - `space_ids` (Set of String) The Kibana space IDs where this output is available. When set, the output will be created and managed within the specified space. Note: The order of space IDs does not matter as this is a set.
diff --git a/internal/fleet/output/schema.go b/internal/fleet/output/schema.go
index 1a1e6f9fe..7fc53cf35 100644
--- a/internal/fleet/output/schema.go
+++ b/internal/fleet/output/schema.go
@@ -60,7 +60,7 @@ func getSchema() schema.Schema {
 			},
 			"hosts": schema.ListAttribute{
 				Description: "A list of hosts.",
-				Optional:    true,
+				Required:    true,
 				Validators: []validator.List{
 					listvalidator.SizeAtLeast(1),
 				},