diff --git a/examples/rails6/test-emd/Gemfile b/examples/rails6/test-emd/Gemfile
index 19236fc..68be3c5 100644
--- a/examples/rails6/test-emd/Gemfile
+++ b/examples/rails6/test-emd/Gemfile
@@ -12,7 +12,7 @@ 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', '~> 5.5'
+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/examples/rails6/test-emd/Gemfile.lock b/examples/rails6/test-emd/Gemfile.lock
index 043a442..bf04847 100644
--- a/examples/rails6/test-emd/Gemfile.lock
+++ b/examples/rails6/test-emd/Gemfile.lock
@@ -108,7 +108,7 @@ GEM
     nokogiri (1.12.5-x86_64-linux)
       racc (~> 1.4)
     public_suffix (4.0.6)
-    puma (5.5.1)
+    puma (5.6.2)
       nio4r (~> 2.0)
     racc (1.6.0)
     rack (2.2.3)
@@ -214,7 +214,7 @@ DEPENDENCIES
   emd
   jbuilder (~> 2.7)
   listen (~> 3.3)
-  puma (~> 5.5)
+  puma (~> 5.6)
   rack-mini-profiler (~> 2.0)
   rails (~> 6.1.4, >= 6.1.4.1)
   redcarpet