diff --git a/Gemfile.lock b/Gemfile.lock
index 362eb32..c892c91 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -90,7 +90,7 @@ GEM
     minitest (5.16.3)
     msgpack (1.6.0)
     nio4r (2.5.8)
-    nokogiri (1.13.8)
+    nokogiri (1.13.9)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
     pg (1.4.4)
@@ -135,14 +135,14 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rspec-core (3.11.0)
-      rspec-support (~> 3.11.0)
-    rspec-expectations (3.11.1)
+    rspec-core (3.12.0)
+      rspec-support (~> 3.12.0)
+    rspec-expectations (3.12.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.11.0)
-    rspec-mocks (3.11.1)
+      rspec-support (~> 3.12.0)
+    rspec-mocks (3.12.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.11.0)
+      rspec-support (~> 3.12.0)
     rspec-rails (5.1.2)
       actionpack (>= 5.2)
       activesupport (>= 5.2)
@@ -151,7 +151,7 @@ GEM
       rspec-expectations (~> 3.10)
       rspec-mocks (~> 3.10)
       rspec-support (~> 3.10)
-    rspec-support (3.11.1)
+    rspec-support (3.12.0)
     shoulda-matchers (5.2.0)
       activesupport (>= 5.2.0)
     spring (2.1.1)
@@ -172,7 +172,7 @@ GEM
     websocket-driver (0.7.5)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
-    zeitwerk (2.6.1)
+    zeitwerk (2.6.5)
 
 PLATFORMS
   ruby
diff --git a/README.md b/README.md
index 7db80e4..1d1bf5f 100644
--- a/README.md
+++ b/README.md
@@ -1,24 +1,17 @@
-# README
 
-This README would normally document whatever steps are necessary to get the
-application up and running.
+# api-postgresql
 
-Things you may want to cover:
+O projeto conta com uma api construida em Ruby on Rails para fins de desenvolvimento e aprendizado.
 
-* Ruby version
 
-* System dependencies
+The project has an API built in Ruby on Rails for development and learning purposes.
+## Tutor
 
-* Configuration
+- [Joathan](https://github.com/joathan)
 
-* Database creation
+## Referência
 
-* Database initialization
+ - [RubyGems](https://rubygems.org/)
+## 🛠 Habilidades
+Ruby on Rails, HTML...
 
-* How to run the test suite
-
-* Services (job queues, cache servers, search engines, etc.)
-
-* Deployment instructions
-
-* ...
diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb
index 4d064f2..b609db3 100644
--- a/app/controllers/users_controller.rb
+++ b/app/controllers/users_controller.rb
@@ -1,4 +1,5 @@
 class UsersController < ApplicationController
+  before_action :set_user, only: [:update]
  
   def create
     @user = User.new(user_params)
@@ -10,6 +11,14 @@ def create
     end
   end
 
+  def update
+    if @user.update(user_params)
+      render json: @user, status: 200
+    else
+      render json: @user.errors, status: :unprocessable_entity
+    end
+  end
+
   private
     # Use callbacks to share common setup or constraints between actions.
     def set_user
diff --git a/config/routes.rb b/config/routes.rb
index 5981895..3da4fc9 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -1,5 +1,5 @@
 Rails.application.routes.draw do
-  resources :users, only: [:create]
+  resources :users, only: [ :create, :update ]
   
   # For details on the DSL available within this file, see https://guides.rubyonrails.org/routing.html
 end
diff --git a/spec/requests/users_spec.rb b/spec/requests/users_spec.rb
new file mode 100644
index 0000000..842ce16
--- /dev/null
+++ b/spec/requests/users_spec.rb
@@ -0,0 +1,13 @@
+require 'rails_helper'
+
+RSpec.describe "Users", type: :request do
+  describe "PUT /users/update" do
+    let!(:user) { User.create(name: 'John', age: 28) }
+      scenario 'valid user attributes' do
+        put "/users/#{user.id}", params: {
+          user: { name: 'John', age: 28 }
+        }
+        expect(response.status).to eq(200)  
+      end
+  end
+end