diff --git a/Gemfile b/Gemfile
index eb2fb58..8c31b40 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ gem 'actionpack', '~> 6.0.0'
 gem 'railties', '~> 6.0.0'
 
 # Use Puma as the app server
-gem 'puma', '~> 4.3.1'
+gem 'puma', '~> 4.3.3'
 # Use Capistrano for deployment
 # gem 'capistrano-rails', group: :development
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 3203f4a..f63674e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -46,7 +46,7 @@ GEM
     nio4r (2.5.2)
     nokogiri (1.10.8)
       mini_portile2 (~> 2.4.0)
-    puma (4.3.1)
+    puma (4.3.3)
       nio4r (~> 2.0)
     rack (2.0.7)
     rack-cors (1.0.6)
@@ -84,7 +84,7 @@ DEPENDENCIES
   byebug
   doc2text (= 0.4.2)
   listen (~> 3.2.0)
-  puma (~> 4.3.1)
+  puma (~> 4.3.3)
   rack-cors
   railties (~> 6.0.0)
   tzinfo-data