diff --git a/Gemfile b/Gemfile
index 21d5af3..2c66193 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,7 +12,7 @@ gem 'ransack', '~> 2.3'
 gem 'rails', '~> 6.0.3.2'
 # Use sqlite3 as the database for Active Record
 # 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 48a4ff3..fdeb8e4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -120,14 +120,14 @@ GEM
     mini_portile2 (2.4.0)
     minitest (5.14.1)
     msgpack (1.3.3)
-    nio4r (2.5.2)
+    nio4r (2.5.8)
     nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
     pg (1.2.3)
     polyamorous (2.3.2)
       activerecord (>= 5.2.1)
     public_suffix (4.0.5)
-    puma (4.3.5)
+    puma (4.3.9)
       nio4r (~> 2.0)
     rack (2.2.3)
     rack-proxy (0.6.5)
@@ -258,7 +258,7 @@ DEPENDENCIES
   kaminari (~> 1.2)
   listen (~> 3.2)
   pg (~> 1.2)
-  puma (~> 4.1)
+  puma (~> 4.3)
   rails (~> 6.0.3.2)
   ransack (~> 2.3)
   rspec-rails (~> 4.0)