diff --git a/Gemfile b/Gemfile
index c68879a..3c848ec 100644
--- a/Gemfile
+++ b/Gemfile
@@ -20,7 +20,7 @@ end
 
 
 # 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 81cb4a2..a72a3c7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -151,7 +151,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (3.1.0)
-    puma (3.12.1)
+    puma (3.12.2)
     rack (2.0.7)
     rack-protection (2.0.5)
       rack
@@ -272,7 +272,7 @@ DEPENDENCIES
   listen (>= 3.0.5, < 3.2)
   mini_magick
   pg
-  puma (~> 3.7)
+  puma (~> 3.12)
   rails (~> 5.1.6)
   redis (~> 4.0)
   sass-rails (~> 5.0)