diff --git a/Gemfile b/Gemfile
index 976ccaa..6765158 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,7 +5,7 @@ ruby '2.7.1'
 
 gem 'rails', '~> 6.0.3', '>= 6.0.3.4'
 gem 'pg', '>= 0.18', '< 2.0'
-gem 'puma', '~> 4.1'
+gem 'puma', '~> 4.3'
 gem 'sass-rails', '>= 6'
 gem 'webpacker', '~> 4.0'
 gem 'turbolinks', '~> 5'
diff --git a/Gemfile.lock b/Gemfile.lock
index 801809b..fc111e0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -160,7 +160,7 @@ GEM
     msgpack (1.3.3)
     multi_json (1.15.0)
     nenv (0.3.0)
-    nio4r (2.5.4)
+    nio4r (2.5.8)
     nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
     notiffany (0.1.3)
@@ -179,7 +179,7 @@ GEM
     pry-rails (0.3.9)
       pry (>= 0.10.4)
     public_suffix (4.0.6)
-    puma (4.3.6)
+    puma (4.3.11)
       nio4r (~> 2.0)
     rack (2.2.3)
     rack-proxy (0.6.5)
@@ -326,7 +326,7 @@ DEPENDENCIES
   pg (>= 0.18, < 2.0)
   pry-byebug
   pry-rails
-  puma (~> 4.1)
+  puma (~> 4.3)
   rails (~> 6.0.3, >= 6.0.3.4)
   rename!
   rspec-rails