diff --git a/.ruby-version b/.ruby-version
index ecd7ee50cb..30f69e8cc5 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.5.8
+2.5.9
diff --git a/Gemfile b/Gemfile
index 886f1e45e9..1ef1d8b4eb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 source 'https://rubygems.org'
-ruby "2.5.8"
+ruby "2.5.9"
 git_source(:github) { |repo_name| "https://github.com/#{repo_name}.git" }
 
 gem 'rails', '~> 5.2'
diff --git a/Gemfile.lock b/Gemfile.lock
index 697ef167a5..30b8aa3eb0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -743,7 +743,7 @@ DEPENDENCIES
   wkhtmltopdf-binary
 
 RUBY VERSION
-   ruby 2.5.8p224
+   ruby 2.5.9p229
 
 BUNDLED WITH
    1.17.3