diff --git a/Gemfile b/Gemfile
index 43426bb..3ed4c9b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -31,7 +31,7 @@ gem 'devise', '>= 4.7.1'
 # Use Capistrano for deployment
 # gem 'capistrano-rails', group: :development
 # Reduces boot times through caching; required in config/boot.rb
-gem 'puma', '~> 3.11'
+gem 'puma', '~> 3.12'
 gem 'sass-rails', '~> 5.0'
 gem 'uglifier', '>= 1.3.0'
 gem 'faraday'
diff --git a/Gemfile.lock b/Gemfile.lock
index 90b6751..90d6543 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -139,7 +139,7 @@ GEM
       ast (~> 2.4.0)
     popper_js (1.14.5)
     public_suffix (4.0.1)
-    puma (3.12.1)
+    puma (3.12.3)
     rack (2.0.7)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -283,7 +283,7 @@ DEPENDENCIES
   jquery-rails
   listen (>= 3.0.5, < 3.2)
   mini_racer
-  puma (~> 3.11)
+  puma (~> 3.12)
   rails (~> 5.2.3)
   rspec-rails (~> 3.8)
   rubocop