diff --git a/app/controllers/api/v1/grid_summons_controller.rb b/app/controllers/api/v1/grid_summons_controller.rb
index 2a40033..a34a035 100644
--- a/app/controllers/api/v1/grid_summons_controller.rb
+++ b/app/controllers/api/v1/grid_summons_controller.rb
@@ -3,7 +3,7 @@
 module Api
   module V1
     class GridSummonsController < Api::V1::ApiController
-      before_action :set, only: %w[destroy]
+      before_action :set, only: %w[update destroy]
 
       attr_reader :party, :incoming_summon
 
@@ -24,6 +24,14 @@ module Api
         end
       end
 
+      def update
+        @summon.attributes = summon_params
+
+        return render json: GridSummonBlueprint.render(@summon, view: :full) if @summon.save
+
+        render_validation_error_response(@character)
+      end
+
       def save_summon(summon)
         if (grid_summon = GridSummon.where(
           party_id: party.id,
diff --git a/config/routes.rb b/config/routes.rb
index e9a6b9f..70bdf6d 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -10,7 +10,7 @@ Rails.application.routes.draw do
       resources :users, only: %i[create update show]
       resources :grid_weapons, only: %i[update destroy]
       resources :grid_characters, only: %i[update destroy]
-      resources :grid_summons, only: %i[destroy]
+      resources :grid_summons, only: %i[update destroy]
       resources :favorites, only: [:create]
 
       get 'users/info/:id', to: 'users#info'