diff --git a/Gemfile b/Gemfile
index fae356a..c1a6b5f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,7 +6,7 @@ ruby '2.6.3'
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem 'rails', '~> 6.0.2', '>= 6.0.2.1'
 # 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 5f838c5..5e59cdc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -184,7 +184,7 @@ GEM
     polyamorous (2.3.2)
       activerecord (>= 5.2.1)
     public_suffix (4.0.3)
-    puma (4.3.3)
+    puma (4.3.5)
       nio4r (~> 2.0)
     rack (2.2.2)
     rack-proxy (0.6.5)
@@ -313,7 +313,7 @@ DEPENDENCIES
   devise
   jbuilder (~> 2.7)
   pg
-  puma (~> 4.1)
+  puma (~> 4.3)
   rails (~> 6.0.2, >= 6.0.2.1)
   sass-rails (>= 6)
   selenium-webdriver