diff --git a/Gemfile b/Gemfile
index f1d145d..35f743b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,7 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
 ruby '2.7.0'
 gem 'rails', '~> 6.0.2', '>= 6.0.2.2'
-gem 'puma', '~> 4.1'
+gem 'puma', '~> 4.3'
 gem 'sass-rails', '>= 6'
 gem 'webpacker', '~> 4.0'
 gem 'turbolinks', '~> 5'
diff --git a/Gemfile.lock b/Gemfile.lock
index 9057d92..397a921 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -248,7 +248,7 @@ GEM
     net-scp (3.0.0)
       net-ssh (>= 2.6.5, < 7.0.0)
     net-ssh (6.0.2)
-    nio4r (2.5.2)
+    nio4r (2.5.8)
     nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
     orm_adapter (0.5.0)
@@ -263,7 +263,7 @@ GEM
       coderay (~> 1.1)
       method_source (~> 1.0)
     public_suffix (4.0.5)
-    puma (4.3.3)
+    puma (4.3.12)
       nio4r (~> 2.0)
     rack (2.2.2)
     rack-protection (2.0.8.1)
@@ -423,7 +423,7 @@ DEPENDENCIES
   paper_trail
   pg
   pry
-  puma (~> 4.1)
+  puma (~> 4.3)
   rails (~> 6.0.2, >= 6.0.2.2)
   sass-rails (>= 6)
   selenium-webdriver