diff --git a/Gemfile b/Gemfile
index be5ed1d..cce67d5 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,7 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
 ruby '2.6.3'
 
-gem 'puma', '~> 4.1'
+gem 'puma', '~> 4.3'
 gem 'rails', '~> 6.0.2', '>= 6.0.2.1'
 gem 'sass-rails', '>= 6'
 gem 'turbolinks', '~> 5'
diff --git a/Gemfile.lock b/Gemfile.lock
index 760e2fe..6ad3904 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -123,7 +123,7 @@ GEM
     orm_adapter (0.5.0)
     pg (1.2.2)
     public_suffix (4.0.3)
-    puma (4.3.1)
+    puma (4.3.5)
       nio4r (~> 2.0)
     rack (2.1.1)
     rack-proxy (0.6.5)
@@ -250,7 +250,7 @@ DEPENDENCIES
   jbuilder (~> 2.7)
   listen (>= 3.0.5, < 3.2)
   pg
-  puma (~> 4.1)
+  puma (~> 4.3)
   rails (~> 6.0.2, >= 6.0.2.1)
   react-rails
   rspec-rails