diff --git a/Gemfile b/Gemfile
old mode 100755
new mode 100644
index a7ccf9f..bf55d5b
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,7 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
 ruby '3.0.1'
 gem 'rails', '~> 6.1.1'
-gem 'puma', '~> 4.1'
+gem 'puma', '~> 4.3'
 gem 'sass-rails'
 gem 'webpacker', '~> 5.2', '>= 5.2.1'
 gem 'turbolinks', '~> 5'
diff --git a/Gemfile.lock b/Gemfile.lock
old mode 100755
new mode 100644
index 574cd97..c1bab60
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -154,9 +154,9 @@ GEM
       racc (~> 1.4)
     pg (1.2.3)
     public_suffix (4.0.6)
-    puma (4.3.10)
+    puma (4.3.12)
       nio4r (~> 2.0)
-    puma (4.3.10-java)
+    puma (4.3.12-java)
       nio4r (~> 2.0)
     racc (1.6.0)
     racc (1.6.0-java)
@@ -305,7 +305,7 @@ DEPENDENCIES
   minitest (~> 5.8, >= 5.8.4)
   minitest-reporters
   pg (= 1.2.3)
-  puma (~> 4.1)
+  puma (~> 4.3)
   rails (~> 6.1.1)
   rails-controller-testing
   redis (~> 4.0)