diff --git a/Gemfile b/Gemfile
index 5e0d023..8372d7b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -18,7 +18,7 @@ gem 'jquery-rails', '~> 4.3.3'
 gem 'kaminari', '~> 1.1.1'
 gem 'mini_magick', '~> 4.8.0'
 gem 'pg', '~> 1.0.0'
-gem 'puma', '~> 3.11.3'
+gem 'puma', '~> 3.12.0'
 gem 'rails', '~> 5.2.1'
 gem 'sass-rails', '~> 5.0.7'
 gem 'selectize-rails', '~> 0.12.4.1'
diff --git a/Gemfile.lock b/Gemfile.lock
index 842f12f..3e6442d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -257,7 +257,7 @@ GEM
     pry (0.11.3)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    puma (3.11.4)
+    puma (3.12.0)
     pusher-client (0.6.2)
       json
       websocket (~> 1.0)
@@ -424,7 +424,7 @@ DEPENDENCIES
   listen (~> 3.1.5)
   mini_magick (~> 4.8.0)
   pg (~> 1.0.0)
-  puma (~> 3.11.3)
+  puma (~> 3.12.0)
   rails (~> 5.2.1)
   rails-controller-testing (~> 1.0.2)
   rspec-rails (~> 3.7)