diff --git a/Gemfile b/Gemfile
index 0a30189..b8d6b0a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,7 +12,7 @@ gem 'rails', '~> 5.1.4'
 # Use mysql as the database for Active Record
 gem 'mysql2', '>= 0.3.18', '< 0.5'
 # Use Puma as the app server
-gem 'puma', '~> 3.7'
+gem 'puma', '~> 3.11'
 # 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 7d45379..8a8cd0a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -130,7 +130,7 @@ GEM
     pry-rails (0.3.6)
       pry (>= 0.10.4)
     public_suffix (3.0.1)
-    puma (3.11.2)
+    puma (3.11.3)
     rack (2.0.4)
     rack-test (0.8.2)
       rack (>= 1.0, < 3)
@@ -249,7 +249,7 @@ DEPENDENCIES
   mysql2 (>= 0.3.18, < 0.5)
   pry-byebug
   pry-rails
-  puma (~> 3.7)
+  puma (~> 3.11)
   railroady
   rails (~> 5.1.4)
   rails_best_practices