diff --git a/docs/data-sources/user_roles.md b/docs/data-sources/user_roles.md
index 8c6bc454..4df180d2 100644
--- a/docs/data-sources/user_roles.md
+++ b/docs/data-sources/user_roles.md
@@ -44,7 +44,7 @@ Read-Only:
 
 - `can_be_deleted` (Boolean)
 - `description` (String)
-- `granted_space_permissions` (List of String)
+- `granted_space_permissions` (Set of String)
 - `granted_system_permissions` (List of String)
 - `id` (String)
 - `name` (String)
diff --git a/docs/resources/user_role.md b/docs/resources/user_role.md
index c3e656b0..de32b7b9 100644
--- a/docs/resources/user_role.md
+++ b/docs/resources/user_role.md
@@ -38,7 +38,7 @@ resource "octopusdeploy_user_role" "example" {
 
 - `can_be_deleted` (Boolean)
 - `description` (String) The description of this user role.
-- `granted_space_permissions` (List of String)
+- `granted_space_permissions` (Set of String)
 - `granted_system_permissions` (List of String)
 - `id` (String) The unique ID for this resource.
 - `space_permission_descriptions` (List of String)
diff --git a/octopusdeploy/schema_user_role.go b/octopusdeploy/schema_user_role.go
index 4487a917..5882a02d 100644
--- a/octopusdeploy/schema_user_role.go
+++ b/octopusdeploy/schema_user_role.go
@@ -101,7 +101,7 @@ func getUserRoleSchema() map[string]*schema.Schema {
 		"granted_space_permissions": {
 			Elem:     &schema.Schema{Type: schema.TypeString},
 			Optional: true,
-			Type:     schema.TypeList,
+			Type:     schema.TypeSet,
 		},
 		"granted_system_permissions": {
 			Elem:     &schema.Schema{Type: schema.TypeString},