diff --git a/Gemfile b/Gemfile
index bdac00b48..fc61a268f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,7 +5,7 @@ ruby '>= 2.3.0', '< 2.6.0'
 
 gem 'pkg-config', '~> 1.3'
 
-gem 'puma', '~> 3.11'
+gem 'puma', '~> 3.12'
 gem 'rails', '~> 5.2.1'
 gem 'thor', '~> 0.20'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index ad5ade8ee..bbbcc3423 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -412,7 +412,7 @@ GEM
     pry-rails (0.3.6)
       pry (>= 0.10.4)
     public_suffix (3.0.2)
-    puma (3.11.4)
+    puma (3.12.0)
     pundit (1.1.0)
       activesupport (>= 3.0.0)
     rack (2.0.5)
@@ -721,7 +721,7 @@ DEPENDENCIES
   private_address_check (~> 0.4.1)
   pry-byebug (~> 3.6)
   pry-rails (~> 0.3)
-  puma (~> 3.11)
+  puma (~> 3.12)
   pundit (~> 1.1)
   rack-attack (~> 5.2)
   rack-cors (~> 1.0)
@@ -765,4 +765,4 @@ RUBY VERSION
    ruby 2.5.0p0
 
 BUNDLED WITH
-   1.16.3
+   1.16.5