diff --git a/Gemfile b/Gemfile
index 45711fa..cb505eb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,7 +6,7 @@ ruby '2.7.2'
 gem 'bootsnap', '>= 1.4.2', require: false
 gem 'jbuilder', '~> 2.7'
 gem 'pry'
-gem 'puma', '~> 4.1'
+gem 'puma', '~> 4.3'
 gem 'rails', '~> 6.0.3', '>= 6.0.3.5'
 gem 'sass-rails', '>= 6'
 gem 'sqlite3', '~> 1.4'
diff --git a/Gemfile.lock b/Gemfile.lock
index 621bead..b404dfc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -105,11 +105,13 @@ GEM
     nio4r (2.5.8)
     nokogiri (1.12.5-x86_64-darwin)
       racc (~> 1.4)
+    nokogiri (1.12.5-x86_64-linux)
+      racc (~> 1.4)
     pry (0.14.1)
       coderay (~> 1.1)
       method_source (~> 1.0)
     public_suffix (4.0.6)
-    puma (4.3.8)
+    puma (4.3.9)
       nio4r (~> 2.0)
     racc (1.5.2)
     rack (2.2.3)
@@ -221,6 +223,7 @@ GEM
 
 PLATFORMS
   x86_64-darwin-18
+  x86_64-linux
 
 DEPENDENCIES
   bootsnap (>= 1.4.2)
@@ -230,7 +233,7 @@ DEPENDENCIES
   jbuilder (~> 2.7)
   listen (~> 3.2)
   pry
-  puma (~> 4.1)
+  puma (~> 4.3)
   rails (~> 6.0.3, >= 6.0.3.5)
   rspec-rails
   sass-rails (>= 6)