diff --git a/Gemfile b/Gemfile
index f69d505..2b5c084 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,7 +5,7 @@ ruby '2.6.4'
 
 gem 'rails', '~> 6.0.0'
 gem 'sqlite3', '~> 1.4'
-gem 'puma', '~> 3.11'
+gem 'puma', '~> 3.12'
 gem 'sass-rails', '~> 5'
 gem 'webpacker', '~> 4.0'
 gem 'turbolinks', '~> 5'
diff --git a/Gemfile.lock b/Gemfile.lock
index b09cf3e..dbf9b00 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -108,7 +108,7 @@ GEM
     nokogiri (1.10.4)
       mini_portile2 (~> 2.4.0)
     public_suffix (4.0.1)
-    puma (3.12.1)
+    puma (3.12.4)
     rack (2.0.7)
     rack-proxy (0.6.5)
       rack
@@ -221,7 +221,7 @@ DEPENDENCIES
   faraday_middleware
   jbuilder (~> 2.7)
   listen (>= 3.0.5, < 3.2)
-  puma (~> 3.11)
+  puma (~> 3.12)
   rails (~> 6.0.0)
   rspec-rails (~> 3.8)
   sass-rails (~> 5)