diff --git a/Gemfile b/Gemfile
index 471ca4c..5d3e873 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ gem 'rails', '~> 5.2.3'
 # Use postgress as the database for Active Record
 gem 'pg'
 # Use Puma as the app server
-gem 'puma', '~> 3.11'
+gem 'puma', '~> 5.6'
 # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
 # gem 'jbuilder', '~> 2.5'
 # Use Redis adapter to run Action Cable in production
diff --git a/Gemfile.lock b/Gemfile.lock
index 1abcb2a..6a94d7c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -145,7 +145,9 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (0.9.2)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.11.3)
@@ -161,7 +163,8 @@ GEM
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    puma (3.12.1)
+    puma (5.6.2)
+      nio4r (~> 2.0)
     rack (2.0.7)
     rack-protection (2.0.5)
       rack
@@ -292,7 +295,7 @@ DEPENDENCIES
   listen (>= 3.0.5, < 3.2)
   pg
   pry (~> 0.12.2)
-  puma (~> 3.11)
+  puma (~> 5.6)
   rails (~> 5.2.3)
   redis (~> 4.1.2)
   rspec-rails (~> 3.8.2)