diff --git a/Gemfile b/Gemfile
index b9b6b4c243f..775fee55da3 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 a74fd5c6697..3d3a1cbe63a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -419,7 +419,7 @@ GEM
     pry-rails (0.3.6)
       pry (>= 0.10.4)
     public_suffix (3.0.3)
-    puma (3.11.4)
+    puma (3.12.0)
     pundit (1.1.0)
       activesupport (>= 3.0.0)
     raabro (1.1.6)
@@ -730,7 +730,7 @@ DEPENDENCIES
   private_address_check (~> 0.5)
   pry-byebug (~> 3.6)
   pry-rails (~> 0.3)
-  puma (~> 3.11)
+  puma (~> 3.12)
   pundit (~> 1.1)
   rack-attack (~> 5.4)
   rack-cors (~> 1.0)