diff --git a/Gemfile b/Gemfile
index 8557e6b..ddca4fd 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ gem 'rails', '~> 6.0.3', '>= 6.0.3.1'
 # Use sqlite3 as the database for Active Record
 gem 'sqlite3', '~> 1.4'
 # Use Puma as the app server
-gem 'puma', '~> 4.1'
+gem 'puma', '~> 4.3'
 # Use SCSS for stylesheets
 gem 'sass-rails', '>= 6'
 # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
diff --git a/Gemfile.lock b/Gemfile.lock
index 661939c..3425fd2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -102,11 +102,11 @@ 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)
     orm_adapter (0.5.0)
-    puma (4.3.5)
+    puma (4.3.12)
       nio4r (~> 2.0)
     rack (2.2.2)
     rack-test (1.1.0)
@@ -199,7 +199,7 @@ DEPENDENCIES
   devise
   jbuilder (~> 2.7)
   listen (~> 3.2)
-  puma (~> 4.1)
+  puma (~> 4.3)
   rails (~> 6.0.3, >= 6.0.3.1)
   rails-i18n (~> 6.0.0)
   sass-rails (>= 6)