diff --git a/Gemfile b/Gemfile
index d4768c4..4bf6faa 100644
--- a/Gemfile
+++ b/Gemfile
@@ -15,7 +15,7 @@ gem 'jsonapi-resources'
 gem 'rack-cors', :require => 'rack/cors'
 
 # Use Puma as the app server
-gem 'puma', '~> 3.0'
+gem 'puma', '~> 3.12'
 # 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 c976f14..17ef666 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -72,7 +72,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    puma (3.6.2)
+    puma (3.12.6)
     rack (2.0.1)
     rack-cors (0.4.0)
     rack-test (0.6.3)
@@ -135,7 +135,7 @@ DEPENDENCIES
   listen (~> 3.0.5)
   pg
   pry
-  puma (~> 3.0)
+  puma (~> 3.12)
   rack-cors
   rails (~> 5.0.1)
   redcarpet