diff --git a/Gemfile b/Gemfile
index ab84917..46e2be8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,7 @@ ruby '2.5.3'
 gem 'pg'
 gem 'rails', '~> 5.2.3'
 # Use Puma as the app server
-gem 'puma', '~> 3.11'
+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 dac4345..66d637e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -166,7 +166,7 @@ GEM
       method_source (~> 0.9.0)
     pry-rails (0.3.9)
       pry (>= 0.10.4)
-    puma (3.12.1)
+    puma (3.12.3)
     pundit (2.0.1)
       activesupport (>= 3.0.0)
     rack (2.0.7)
@@ -343,7 +343,7 @@ DEPENDENCIES
   listen (>= 3.0.5, < 3.2)
   pg
   pry-rails
-  puma (~> 3.11)
+  puma (~> 3.12)
   pundit
   rack-cors
   rails (~> 5.2.3)