diff --git a/Gemfile b/Gemfile
index cac2a9b..a2082f0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,7 +13,7 @@ end
 group :production do
   gem 'pg'
 end# Use Puma as the app server
-gem 'puma', '~> 3.11'
+gem 'puma', '~> 3.12'
 # Use SCSS for stylesheets
 gem 'sass-rails', '~> 5'
 # Transpile app-like JavaScript. Read more: https://github.com/rails/webpacker
diff --git a/Gemfile.lock b/Gemfile.lock
index 76b16ac..9c740ec 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -95,7 +95,9 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (0.9.2)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.11.3)
@@ -105,7 +107,7 @@ GEM
       mini_portile2 (~> 2.4.0)
     pg (1.1.4)
     public_suffix (3.1.1)
-    puma (3.12.1)
+    puma (3.12.6)
     rack (2.2.3)
     rack-proxy (0.6.5)
       rack
@@ -208,7 +210,7 @@ DEPENDENCIES
   jbuilder (~> 2.7)
   listen (>= 3.0.5, < 3.2)
   pg
-  puma (~> 3.11)
+  puma (~> 3.12)
   rails (~> 6.0.0)
   sass-rails (~> 5)
   selenium-webdriver