diff --git a/.ruby-version b/.ruby-version
index aedc15b..0cadbc1 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.5.3
+2.5.5
diff --git a/Gemfile b/Gemfile
index 635e963..b47d55b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,7 @@
 source 'https://rubygems.org'
 git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
-ruby '2.5.3'
+ruby '2.5.5'
 
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem 'rails', '~> 5.2.3'
diff --git a/Gemfile.lock b/Gemfile.lock
index 9f56cf1..88964c0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -183,7 +183,7 @@ DEPENDENCIES
   yard
 
 RUBY VERSION
-   ruby 2.5.3p105
+   ruby 2.5.5p157
 
 BUNDLED WITH
    2.0.1