diff --git a/CHANGELOG.md b/CHANGELOG.md
index b3fc04b..8ccbc86 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.1.5] - 2023-25-11
+
+### Added
+
+- Add `assign_params` method to Request class
+
 ## [0.1.4] - 2023-25-11
 
 ### Fixed
diff --git a/Gemfile.lock b/Gemfile.lock
index e8268c7..749c6d1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    lennarb (0.1.4)
+    lennarb (0.1.5)
       colorize (~> 1.1)
       puma (~> 6.4)
       rack (~> 3.0, >= 3.0.8)
diff --git a/lib/lenna/router/request.rb b/lib/lenna/router/request.rb
index b34a03f..d1cd552 100644
--- a/lib/lenna/router/request.rb
+++ b/lib/lenna/router/request.rb
@@ -8,6 +8,16 @@ class Router
     # @attr body    [Hash] the request body
     # @attr params  [Hash] the request params
     class Request < ::Rack::Request
+
+      # This method is used to set the request params.
+      #
+      # @param params [Hash] the request params
+      #
+      # @return [Hash] the request params
+      #
+      # @api public
+      def assign_params(params) = @params = params
+
       # This method is used to parse the body params.
       #
       # @return [Hash] the request params
diff --git a/lib/lennarb/version.rb b/lib/lennarb/version.rb
index ce700ff..cab8303 100644
--- a/lib/lennarb/version.rb
+++ b/lib/lennarb/version.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 module Lennarb
-  VERSION = '0.1.4'
+  VERSION = '0.1.5'
 
   public_constant :VERSION
 end
diff --git a/test/lib/lenna/router/test_request.rb b/test/lib/lenna/router/test_request.rb
index 83eb854..531b62c 100644
--- a/test/lib/lenna/router/test_request.rb
+++ b/test/lib/lenna/router/test_request.rb
@@ -5,6 +5,15 @@
 module Lenna
   class Router
     class TestRequest < Minitest::Test
+      def test_assing_params
+        env     = ::Rack::MockRequest.env_for('/', method: 'POST')
+        request = Request.new(env)
+
+        request.assign_params({ 'foo' => 'bar' })
+
+        assert_equal({ 'foo' => 'bar' }, request.params)
+      end
+
       def test_with_query_string
         env = ::Rack::MockRequest.env_for('/?foo=bar')