diff --git a/Gemfile b/Gemfile
index cab8f53..87d97eb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,7 +10,7 @@ gem 'rails', '~> 6.0.2', '>= 6.0.2.1'
 # Use postgresql as the database for Active Record
 gem 'pg', '>= 0.18', '1.2.2'
 # 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 7d7a292..915016d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -175,7 +175,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (4.0.3)
-    puma (4.3.1)
+    puma (4.3.5)
       nio4r (~> 2.0)
     pundit (1.1.0)
       activesupport (>= 3.0.0)
@@ -346,7 +346,7 @@ DEPENDENCIES
   pg (>= 0.18, = 1.2.2)
   popper_js (~> 1.14.5)
   pry
-  puma (~> 4.1)
+  puma (~> 4.3)
   pundit (~> 1.1)
   rack-cors (~> 1.1, >= 1.1.1)
   rails (~> 6.0.2, >= 6.0.2.1)