diff --git a/Gemfile b/Gemfile
index 6143c04..8249d62 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ gem 'rails', '~> 5.2.3'
 # Use sqlite3 as the database for Active Record
 gem 'sqlite3'
 # Use Puma as the app server
-gem 'puma', '~> 5.5'
+gem 'puma', '~> 5.6'
 # Use SCSS for stylesheets
 gem 'sass-rails', '~> 5.0'
 # Use Uglifier as compressor for JavaScript assets
diff --git a/Gemfile.lock b/Gemfile.lock
index 62de0ef..32327be 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -134,7 +134,7 @@ GEM
       mini_portile2 (~> 2.4.0)
     popper_js (1.14.5)
     public_suffix (4.0.1)
-    puma (5.5.1)
+    puma (5.6.2)
       nio4r (~> 2.0)
     rack (2.2.3)
     rack-test (1.1.0)
@@ -258,7 +258,7 @@ DEPENDENCIES
   jbuilder (~> 2.5)
   jquery-rails
   listen (>= 3.0.5, < 3.2)
-  puma (~> 5.5)
+  puma (~> 5.6)
   rails (~> 5.2.3)
   rspec-rails (~> 3.4, >= 3.4.2)
   sass-rails (~> 5.0)