diff --git a/Gemfile b/Gemfile
index 53b5cbc..15f6bfd 100644
--- a/Gemfile
+++ b/Gemfile
@@ -35,7 +35,7 @@ gem 'rufus-scheduler', '>= 3.5.2'
 gem 'typhoeus', '>= 1.3.1'
 gem 'validates_timeliness', '~> 5.0.0.alpha3'
 # 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 c8605e4..d2233d8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -213,7 +213,7 @@ GEM
       actionmailer (>= 3.0.0)
       postmark (~> 1.15.0)
     public_suffix (3.1.0)
-    puma (3.12.1)
+    puma (3.12.3)
     raabro (1.1.6)
     rack (2.0.7)
     rack-cors (1.0.3)
@@ -360,7 +360,7 @@ DEPENDENCIES
   mysql2 (>= 0.3.18, < 0.5)
   newrelic_rpm
   postmark-rails (~> 0.19.0)
-  puma (~> 3.11)
+  puma (~> 3.12)
   rack (>= 2.0.6)
   rack-cors
   rails (~> 5.2.1)