diff --git a/Gemfile b/Gemfile
index 9c884c1..4b17410 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ ruby '2.7.1'
 gem 'bootsnap', '>= 1.4.2', require: false
 gem 'cancancan', '~> 3.1'
 gem 'devise', '~> 4.7'
-gem 'puma', '~> 4.1'
+gem 'puma', '~> 4.3'
 gem 'rails', '~> 6.0.3', '>= 6.0.3.2'
 gem 'sass-rails', '>= 6'
 gem 'sqlite3', '~> 1.4'
diff --git a/Gemfile.lock b/Gemfile.lock
index 94e1dbf..e93a086 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -104,12 +104,12 @@ GEM
     mini_portile2 (2.4.0)
     minitest (5.14.1)
     msgpack (1.3.3)
-    nio4r (2.5.2)
+    nio4r (2.5.8)
     nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
     orm_adapter (0.5.0)
     public_suffix (4.0.5)
-    puma (4.3.5)
+    puma (4.3.9)
       nio4r (~> 2.0)
     rack (2.2.3)
     rack-proxy (0.6.5)
@@ -216,7 +216,7 @@ DEPENDENCIES
   capybara (>= 2.15)
   devise (~> 4.7)
   listen (~> 3.2)
-  puma (~> 4.1)
+  puma (~> 4.3)
   rails (~> 6.0.3, >= 6.0.3.2)
   sass-rails (>= 6)
   selenium-webdriver