diff --git a/Gemfile.lock b/Gemfile.lock
index 0de3561..016558d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -348,9 +348,10 @@ DEPENDENCIES
   spring (= 1.6.2)
   sqlite3 (= 1.3.11)
   turbolinks (= 2.5.3)
+  tzinfo-data
   uglifier (>= 1.3.0)
   webmock
   will_paginate (= 3.0.7)
 
 BUNDLED WITH
-   1.16.1
+   1.17.2
diff --git a/README.md b/README.md
index e50d699..1b6c6d5 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,8 @@
 Yes. We have to drink. But we also have to pay. This is the drinking part.
 
 ## Installation
-1. Make sure Ruby version 2.4.0-dev is installed by running `rbenv version`. If it isn't, install by running `rbenv install 2.4.0-dev`
+
+1. Make sure Ruby version 2.4.0 is installed by running `rbenv version`. If it isn't, install by running `rbenv install`
 2. Run `bundle update` and `bundle install`
 3. Migrate the db using `bundle exec rake db:migrate`
 4. Start Tap by running `bundle exec rails s`