diff --git a/Gemfile b/Gemfile
index 5d96863..4f40f2c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,7 @@ gem 'rails', '~> 6.0.2', '>= 6.0.2.2'
 # gem 'sqlite3', '~> 1.4'
 gem 'pg', '~> 1.2'
 # 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 75ee32f..055f2a7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -119,12 +119,12 @@ GEM
     minitest (5.14.0)
     msgpack (1.3.3)
     netrc (0.11.0)
-    nio4r (2.5.2)
+    nio4r (2.5.8)
     nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
     pg (1.2.3)
     public_suffix (4.0.4)
-    puma (4.3.3)
+    puma (4.3.12)
       nio4r (~> 2.0)
     rack (2.2.2)
     rack-proxy (0.6.5)
@@ -245,7 +245,7 @@ DEPENDENCIES
   jbuilder (~> 2.7)
   listen (>= 3.0.5, < 3.2)
   pg (~> 1.2)
-  puma (~> 4.1)
+  puma (~> 4.3)
   rails (~> 6.0.2, >= 6.0.2.2)
   rails-i18n (~> 6.0.0)
   sass-rails (>= 6)