diff --git a/.ruby-version b/.ruby-version
index 3f684d2..cc6c9a4 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.3.4
+2.3.5
diff --git a/.travis.yml b/.travis.yml
index 93ec1ba..8e4ea97 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: ruby
 rvm:
-  - "2.3.4"
+  - "2.3.5"
 
 before_install:
   - "phantomjs --version"
diff --git a/Dockerfile b/Dockerfile
index 921705f..744f6b0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:2.3.4
+FROM ruby:2.3.5
 RUN apt-get update -qq && apt-get install -y build-essential libpq-dev nodejs
 RUN mkdir /myapp
 WORKDIR /myapp
diff --git a/Gemfile b/Gemfile
index 72b5487..e1223b0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,7 @@ source 'https://rubygems.org'
 #don't upgrade
 gem 'rails', '5.1.4'
 
-ruby '2.3.4'
+ruby '2.3.5'
 
 gem 'rake'
 gem 'rails-perftest'
diff --git a/Gemfile.lock b/Gemfile.lock
index 3f6be21..852c341 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -350,7 +350,7 @@ DEPENDENCIES
   unicorn
 
 RUBY VERSION
-   ruby 2.3.4p301
+   ruby 2.3.5p376
 
 BUNDLED WITH
    1.15.4
diff --git a/README.md b/README.md
index 274c74e..d7ac746 100755
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ If you are looking for support or troubleshooting assistance, please visit our [
 To begin, install the Ruby Version Manager (RVM):
 
 ```bash
-$ curl -L https://get.rvm.io | bash -s stable --autolibs=3 --ruby=2.3.4
+$ curl -L https://get.rvm.io | bash -s stable --autolibs=3 --ruby=2.3.5
 ```
 
 After installing the package, clone this repo: