diff --git a/Gemfile b/Gemfile
index 5bd799f..3fe5c89 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,7 +10,7 @@ gem 'dotenv-rails'
 # Use postgresql as the database for Active Record
 gem 'pg', '>= 0.18'
 # 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 1cf289b..0dc2972 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -165,7 +165,7 @@ GEM
     multi_json (1.15.0)
     multi_xml (0.6.0)
     multipart-post (2.1.1)
-    nio4r (2.5.4)
+    nio4r (2.5.8)
     nokogiri (1.11.1)
       mini_portile2 (~> 2.5.0)
       racc (~> 1.4)
@@ -198,7 +198,7 @@ GEM
       ast (~> 2.4.1)
     pg (1.2.3)
     public_suffix (4.0.6)
-    puma (4.3.7)
+    puma (4.3.11)
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)
@@ -364,7 +364,7 @@ DEPENDENCIES
   omniauth-google-oauth2
   omniauth-twitter!
   pg (>= 0.18)
-  puma (~> 4.1)
+  puma (~> 4.3)
   rails
   rouge
   rspec-rails