diff --git a/lesson5/Gemfile b/lesson5/Gemfile
index ee181e5..a52aa89 100644
--- a/lesson5/Gemfile
+++ b/lesson5/Gemfile
@@ -8,7 +8,7 @@ gem 'rails', '~> 6.1.4', '>= 6.1.4.1'
 # Use sqlite3 as the database for Active Record
 gem 'sqlite3', '~> 1.4'
 # Use Puma as the app server
-gem 'puma', '~> 5.4'
+gem 'puma', '~> 5.6'
 # Use SCSS for stylesheets
 gem 'sass-rails', '>= 6'
 # Transpile app-like JavaScript. Read more: https://github.com/rails/webpacker
diff --git a/lesson5/Gemfile.lock b/lesson5/Gemfile.lock
index 448cddf..7279d81 100644
--- a/lesson5/Gemfile.lock
+++ b/lesson5/Gemfile.lock
@@ -109,7 +109,7 @@ GEM
     nokogiri (1.12.3-x86_64-linux)
       racc (~> 1.4)
     public_suffix (4.0.6)
-    puma (5.4.0)
+    puma (5.6.2)
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)
@@ -217,7 +217,7 @@ DEPENDENCIES
   capybara (>= 3.35)
   jbuilder (~> 2.11)
   listen (~> 3.7)
-  puma (~> 5.4)
+  puma (~> 5.6)
   rack-mini-profiler (~> 2.3)
   rails (~> 6.1.4, >= 6.1.4.1)
   react-rails (~> 2.6)