diff --git a/Gemfile b/Gemfile
index 9375128..8de098b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ gem 'rails', '~> 6.0.2'
 # Use sqlite3 as the database for Active Record
 gem 'pg'
 # Use Puma as the app server
-gem 'puma', '~> 4.1'
+gem 'puma', '~> 4.3'
 # Use SCSS for stylesheets
 gem 'sass-rails', '>= 6'
 # Transpile app-like JavaScript. Read more: https://github.com/rails/webpacker
diff --git a/Gemfile.lock b/Gemfile.lock
index 123e92d..296d3ab 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -227,7 +227,7 @@ GEM
     orm_adapter (0.5.0)
     pg (1.2.3)
     public_suffix (4.0.4)
-    puma (4.3.3)
+    puma (4.3.5)
       nio4r (~> 2.0)
     rack (2.2.3)
     rack-protection (2.0.8.1)
@@ -419,7 +419,7 @@ DEPENDENCIES
   omniauth-github
   omniauth-vkontakte
   pg
-  puma (~> 4.1)
+  puma (~> 4.3)
   rails (~> 6.0.2)
   rails-controller-testing
   rspec-rails (~> 4.0.0.beta3)