diff --git a/Gemfile b/Gemfile
index 6f3e442..d45ef96 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,7 +7,7 @@ ruby '2.6.5'
 gem 'rails', '~> 6.0.1'
 # Use sqlite3 as the database for Active Record
 # Use Puma as the app server
-gem 'puma', '~> 4.1'
+gem 'puma', '~> 4.3'
 # Use SCSS for stylesheets
 gem 'sass-rails', '>= 6'
 # Transpile app-like JavaScript. Read more: https://github.com/rails/webpacker
diff --git a/Gemfile.lock b/Gemfile.lock
index ae115f5..e1e5104 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -101,7 +101,7 @@ GEM
     minitest (5.13.0)
     msgpack (1.3.1)
     msgpack (1.3.1-x64-mingw32)
-    nio4r (2.5.2)
+    nio4r (2.5.8)
     nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
     nokogiri (1.10.9-x64-mingw32)
@@ -115,7 +115,7 @@ GEM
     pg (1.1.4)
     pg (1.1.4-x64-mingw32)
     public_suffix (4.0.1)
-    puma (4.3.0)
+    puma (4.3.12)
       nio4r (~> 2.0)
     rack (2.0.7)
     rack-proxy (0.6.5)
@@ -217,7 +217,7 @@ DEPENDENCIES
   jbuilder (~> 2.7)
   paperclip (>= 6)
   pg
-  puma (~> 4.1)
+  puma (~> 4.3)
   rails (~> 6.0.1)
   sass-rails (>= 6)
   selenium-webdriver