diff --git a/Trail-app/Gemfile b/Trail-app/Gemfile
index feed9e3..e8190bc 100644
--- a/Trail-app/Gemfile
+++ b/Trail-app/Gemfile
@@ -8,7 +8,7 @@ gem 'rails', '~> 5.2.3'
 # Use sqlite3 as the database for Active Record
 gem 'sqlite3'
 # Use Puma as the app server
-gem 'puma', '~> 3.11'
+gem 'puma', '~> 3.12'
 # Use SCSS for stylesheets
 gem 'sass-rails', '~> 5.0'
 # Use Uglifier as compressor for JavaScript assets
diff --git a/Trail-app/Gemfile.lock b/Trail-app/Gemfile.lock
index 80eff5e..aa782b3 100644
--- a/Trail-app/Gemfile.lock
+++ b/Trail-app/Gemfile.lock
@@ -123,7 +123,7 @@ GEM
       mini_portile2 (~> 2.5.0)
       racc (~> 1.4)
     public_suffix (3.1.0)
-    puma (3.12.1)
+    puma (3.12.6)
     racc (1.5.2)
     rack (2.0.7)
     rack-test (1.1.0)
@@ -232,7 +232,7 @@ DEPENDENCIES
   jbuilder (~> 2.5)
   json
   listen (>= 3.0.5, < 3.2)
-  puma (~> 3.11)
+  puma (~> 3.12)
   rails (~> 5.2.3)
   rest-client
   sass-rails (~> 5.0)