diff --git a/Gemfile b/Gemfile
index cd74bea..5c3312d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,7 @@ gem 'devise_token_auth', '~> 1.1', '>= 1.1.3'
 gem 'faker', '~> 2.10', '>= 2.10.1'
 gem 'hirb', '~> 0.7.3'
 gem 'pg', '>= 0.18', '< 2.0'
-gem 'puma', '~> 4.1'
+gem 'puma', '~> 4.3'
 gem 'rack-cors', '~> 1.1', '>= 1.1.1'
 gem 'rails', '~> 6.0.2', '>= 6.0.2.1'
 gem 'rubocop', '~> 0.79.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 439a687..1311707 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -123,7 +123,7 @@ GEM
     mini_portile2 (2.4.0)
     minitest (5.14.0)
     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)
@@ -131,7 +131,7 @@ GEM
     parser (2.7.0.2)
       ast (~> 2.4.0)
     pg (1.2.2)
-    puma (4.3.1)
+    puma (4.3.12)
       nio4r (~> 2.0)
     rack (2.1.1)
     rack-cors (1.1.1)
@@ -238,7 +238,7 @@ DEPENDENCIES
   hirb (~> 0.7.3)
   listen (>= 3.0.5, < 3.2)
   pg (>= 0.18, < 2.0)
-  puma (~> 4.1)
+  puma (~> 4.3)
   rack-cors (~> 1.1, >= 1.1.1)
   rails (~> 6.0.2, >= 6.0.2.1)
   rspec-rails (~> 3.9)