diff --git a/Gemfile b/Gemfile
index 6f6b0b5..e273b25 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,7 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
 ruby '2.6.1'
 gem 'rails',      '6.0.3.4'
-gem 'puma',       '4.3.5'
+gem 'puma',       '4.3.12'
 gem 'sass-rails', '6.0.0'
 gem 'webpacker',  '4.2.2'
 gem 'turbolinks', '5.2.1'
diff --git a/Gemfile.lock b/Gemfile.lock
index 860098b..a265540 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -130,7 +130,7 @@ GEM
       ruby-progressbar
     msgpack (1.3.3)
     nenv (0.3.0)
-    nio4r (2.5.4)
+    nio4r (2.5.8)
     nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
     notiffany (0.1.3)
@@ -145,7 +145,7 @@ GEM
       coderay (~> 1.1)
       method_source (~> 1.0)
     public_suffix (4.0.6)
-    puma (4.3.5)
+    puma (4.3.12)
       nio4r (~> 2.0)
     rack (2.2.3)
     rack-proxy (0.6.5)
@@ -264,7 +264,7 @@ DEPENDENCIES
   pg (= 1.2.3)
   phony_rails
   pry
-  puma (= 4.3.5)
+  puma (= 4.3.12)
   rails (= 6.0.3.4)
   rails-controller-testing (= 1.0.4)
   sass-rails (= 6.0.0)