diff --git a/Gemfile b/Gemfile
index c45f643..2ce4e35 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@ source 'https://rubygems.org'
 git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
 gem 'rails',      '6.0.0'
-gem 'puma',       '3.12.1'
+gem 'puma',       '3.12.4'
 gem 'sass-rails', '5.1.0'
 gem 'webpacker',  '4.0.7'
 gem 'turbolinks', '5.2.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 123c915..8d3525c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -146,7 +146,7 @@ GEM
     orm_adapter (0.5.0)
     pg (1.1.4)
     public_suffix (4.0.1)
-    puma (3.12.1)
+    puma (3.12.4)
     rack (2.0.7)
     rack-proxy (0.6.5)
       rack
@@ -261,7 +261,7 @@ DEPENDENCIES
   listen (= 3.1.5)
   omniauth-google-oauth2
   pg (= 1.1.4)
-  puma (= 3.12.1)
+  puma (= 3.12.4)
   rails (= 6.0.0)
   sass-rails (= 5.1.0)
   selenium-webdriver (= 3.142.4)