diff --git a/Gemfile b/Gemfile
index 271354f..7c941ec 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,7 +6,7 @@ ruby '2.5.0'
 gem 'dotenv-rails', '~> 2.2', '>= 2.2.2'
 gem 'rails', '~> 5.2.0'
 gem 'pg', '>= 0.18', '< 2.0'
-gem 'puma', '~> 3.11'
+gem 'puma', '~> 3.12'
 gem 'jbuilder', '~> 2.5'
 gem 'bcrypt', '~> 3.1.7'
 gem 'mini_magick', '~> 4.8'
diff --git a/Gemfile.lock b/Gemfile.lock
index 242ea0f..a1636d8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -91,7 +91,7 @@ GEM
     pry (0.11.3)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    puma (3.11.4)
+    puma (3.12.6)
     rack (2.0.4)
     rack-cors (1.0.2)
     rack-test (1.0.0)
@@ -175,7 +175,7 @@ DEPENDENCIES
   mini_magick (~> 4.8)
   pg (>= 0.18, < 2.0)
   pry (~> 0.11.3)
-  puma (~> 3.11)
+  puma (~> 3.12)
   rack-cors
   rails (~> 5.2.0)
   rspec-rails (~> 3.7, >= 3.7.2)