diff --git a/Gemfile b/Gemfile
index a1b7ff3..1936441 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ gem 'rails', '~> 6.0.3', '>= 6.0.3.4'
 # Use postgresql as the database for Active Record
 gem 'pg', '>= 0.18', '< 2.0'
 # 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 da9ba47..1bfbc11 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -114,7 +114,7 @@ GEM
     msgpack (1.3.3)
     multi_xml (0.6.0)
     multipart-post (2.1.1)
-    nio4r (2.5.4)
+    nio4r (2.5.8)
     nokogiri (1.13.4)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
@@ -122,7 +122,7 @@ GEM
     pry (0.13.1)
       coderay (~> 1.1)
       method_source (~> 1.0)
-    puma (4.3.6)
+    puma (4.3.12)
       nio4r (~> 2.0)
     racc (1.6.0)
     rack (2.2.3)
@@ -250,7 +250,7 @@ DEPENDENCIES
   listen (~> 3.2)
   pg (>= 0.18, < 2.0)
   pry
-  puma (~> 4.1)
+  puma (~> 4.3)
   rack-throttle
   rails (~> 6.0.3, >= 6.0.3.4)
   redis