diff --git a/Gemfile b/Gemfile
index 1cf474f..040a72a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ gem 'rails', '~> 6.0.3', '>= 6.0.3.2'
 # 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'
 # Transpile app-like JavaScript. Read more: https://github.com/rails/webpacker
diff --git a/Gemfile.lock b/Gemfile.lock
index ab48800..e087867 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -137,12 +137,12 @@ GEM
     minitest (5.14.2)
     msgpack (1.3.3)
     nested_form (0.3.2)
-    nio4r (2.5.3)
+    nio4r (2.5.8)
     nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
     pg (1.2.3)
     public_suffix (4.0.6)
-    puma (4.3.6)
+    puma (4.3.9)
       nio4r (~> 2.0)
     raabro (1.3.1)
     rack (2.2.3)
@@ -274,7 +274,7 @@ DEPENDENCIES
   jbuilder (~> 2.7)
   listen (~> 3.2)
   pg
-  puma (~> 4.1)
+  puma (~> 4.3)
   rails (~> 6.0.3, >= 6.0.3.2)
   rails_admin (~> 2.0)
   rufus-scheduler