diff --git a/Gemfile b/Gemfile
index 24f8a05..d567f60 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,7 +13,7 @@ gem 'carrierwave'
 gem 'devise'
 gem 'will_paginate'
 # Use Puma as the app server
-gem 'puma', '~> 3.7'
+gem 'puma', '~> 3.12'
 # 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 e5a246a..00385e5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -103,7 +103,7 @@ GEM
     orm_adapter (0.5.0)
     pg (1.1.4)
     public_suffix (3.1.0)
-    puma (3.12.1)
+    puma (3.12.2)
     rack (2.0.7)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -202,7 +202,7 @@ DEPENDENCIES
   devise
   listen (>= 3.0.5, < 3.2)
   pg
-  puma (~> 3.7)
+  puma (~> 3.12)
   rails (~> 5.1.7)
   sass-rails (~> 5.0)
   selenium-webdriver