diff --git a/Gemfile b/Gemfile
index 6c091f384..6e81bccab 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,7 +12,7 @@ gem 'rails', '~> 5.2.4'
 # Used by rails 5.2 to reduce the app boot time by over 50%
 gem 'bootsnap'
 # Use Puma as web server
-gem 'puma', '3.12.4'
+gem 'puma', '3.12.6'
 # Use SCSS for stylesheets
 gem 'sass-rails', '~> 5.0', '>= 5.0.6'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index f6cbe0f62..4cdc16d3f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -291,7 +291,7 @@ GEM
     prawn-table (0.2.2)
       prawn (>= 1.3.0, < 3.0.0)
     public_suffix (4.0.3)
-    puma (3.12.4)
+    puma (3.12.6)
     pundit (2.1.0)
       activesupport (>= 3.0.0)
     raabro (1.1.6)
@@ -501,7 +501,7 @@ DEPENDENCIES
   pg
   prawn
   prawn-table
-  puma (= 3.12.4)
+  puma (= 3.12.6)
   pundit
   railroady
   rails (~> 5.2.4)