diff --git a/Gemfile b/Gemfile
index d286a95..0d5f884 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ gem 'rails', '~> 6.0.2', '>= 6.0.2.2'
 ## Use sqlite3 as the database for Active Record
 ## gem 'sqlite3', '~> 1.4'
 # 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 f3f354a..8b4837c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -152,9 +152,9 @@ GEM
     pg (1.2.3-x64-mingw32)
     pg (1.2.3-x86-mingw32)
     public_suffix (4.0.5)
-    puma (4.3.3)
+    puma (4.3.5)
       nio4r (~> 2.0)
-    puma (4.3.3-java)
+    puma (4.3.5-java)
       nio4r (~> 2.0)
     rack (2.2.2)
     rack-proxy (0.6.5)
@@ -317,7 +317,7 @@ DEPENDENCIES
   material_icons
   materialize-sass
   pg
-  puma (~> 4.1)
+  puma (~> 4.3)
   rails (~> 6.0.2, >= 6.0.2.2)
   rspec-rails (~> 4.0.0)
   rubocop-rails