diff --git a/Gemfile b/Gemfile
index b17e6de..c6ee403 100644
--- a/Gemfile
+++ b/Gemfile
@@ -14,7 +14,7 @@ gem 'jbuilder', '~> 2.7'
 gem 'money-fixer-io'
 gem 'money-rails', '~> 1.12'
 gem 'pg', '>= 0.18', '< 2.0'
-gem 'puma', '~> 4.1'
+gem 'puma', '~> 4.3'
 gem 'rails', '~> 6.0.2', '>= 6.0.2.1'
 gem 'sass-rails', '>= 6'
 gem 'simple_form'
diff --git a/Gemfile.lock b/Gemfile.lock
index 2f18272..9fa2310 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -150,7 +150,7 @@ GEM
       money (~> 6.13.2)
       railties (>= 3.0)
     msgpack (1.3.1)
-    nio4r (2.5.2)
+    nio4r (2.5.8)
     nokogiri (1.10.7)
       mini_portile2 (~> 2.4.0)
     orm_adapter (0.5.0)
@@ -160,7 +160,7 @@ GEM
     pg (1.2.2)
     popper_js (1.16.0)
     public_suffix (4.0.3)
-    puma (4.3.1)
+    puma (4.3.9)
       nio4r (~> 2.0)
     rack (2.1.1)
     rack-proxy (0.6.5)
@@ -317,7 +317,7 @@ DEPENDENCIES
   money-fixer-io
   money-rails (~> 1.12)
   pg (>= 0.18, < 2.0)
-  puma (~> 4.1)
+  puma (~> 4.3)
   rails (~> 6.0.2, >= 6.0.2.1)
   rspec-rails (~> 3.8)
   rubocop