diff --git a/Gemfile b/Gemfile
index 9a9a92d..f09c191 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ gem 'rails', '~> 5.1.5'
 gem 'pg', '~> 1.0'
 # gem 'pg', '~> 0.21'
 # Use Puma as the app server
-gem 'puma', '~> 3.0'
+gem 'puma', '~> 4.3'
 # Use SCSS for stylesheets
 gem 'sass-rails', '~> 5.0'
 # Adds normailze css to Rails
diff --git a/Gemfile.lock b/Gemfile.lock
index bb81256..fa1d122 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -113,7 +113,8 @@ GEM
     pry (0.11.3)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    puma (3.12.0)
+    puma (4.3.12)
+      nio4r (~> 2.0)
     rack (2.0.5)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -215,7 +216,7 @@ DEPENDENCIES
   normalize-rails
   pg (~> 1.0)
   pry
-  puma (~> 3.0)
+  puma (~> 4.3)
   rails (~> 5.1.5)
   sass-rails (~> 5.0)
   soda-ruby