diff --git a/Gemfile b/Gemfile
index c5d5871..eece92a 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 d4ab259..f95c21a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -128,7 +128,7 @@ GEM
       mini_portile2 (~> 2.4.0)
     orm_adapter (0.5.0)
     public_suffix (4.0.1)
-    puma (3.12.1)
+    puma (3.12.6)
     rack (2.0.7)
     rack-proxy (0.6.5)
       rack
@@ -238,7 +238,7 @@ DEPENDENCIES
   jbuilder (~> 2.7)
   jwt (~> 2.2, >= 2.2.1)
   listen (>= 3.0.5, < 3.2)
-  puma (~> 3.11)
+  puma (~> 3.12)
   rails (~> 6.0.0)
   sass-rails (~> 5)
   selenium-webdriver