diff --git a/Gemfile b/Gemfile
index 6b25d80..fbfc7df 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,7 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 ruby '2.6.2'
 
 gem 'rails', '~> 6.0.0.rc2'
-gem 'puma', '~> 3.12'
+gem 'puma', '~> 4.3'
 gem 'sass-rails', '~> 5'
 gem 'webpacker', '~> 4.0'
 gem 'turbolinks', '~> 5'
diff --git a/Gemfile.lock b/Gemfile.lock
index 1aa7f94..7bee666 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -181,7 +181,8 @@ GEM
     orm_adapter (0.5.0)
     pg (1.1.4)
     public_suffix (3.1.1)
-    puma (3.12.6)
+    puma (4.3.12)
+      nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)
     rack-proxy (0.6.5)
@@ -312,7 +313,7 @@ DEPENDENCIES
   omniauth-rails_csrf_protection
   omniauth-stripe-connect
   pg
-  puma (~> 3.12)
+  puma (~> 4.3)
   rails (~> 6.0.0.rc2)
   ransack!
   sass-rails (~> 5)