diff --git a/.ruby-version b/.ruby-version
index ebf14b469..530cdd91a 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.1.8
+2.2.4
diff --git a/.travis.yml b/.travis.yml
index 42fb140d5..9a3401865 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,7 +8,7 @@ env:
   global:
     secure: "Z5TpM2jEX4UCvNePnk/LwltQX48U2u9BRc+Iypr1x9QW2o228QJhPIOH39a8RMUrepGnkQIq9q3ZRUn98RfrJz1yThtlNFL3NmzdQ57gKgjGwfpa0e4Dwj/ZJqV2D84tDGjvdVYLP7zzaYZxQcwk/cgNpzKf/jq97HLNP7CYuf4="
 rvm:
-- 2.1.8
+- 2.2.4
 before_script:
 - psql -c 'create database growstuff_test;' -U postgres
 script:
diff --git a/Gemfile b/Gemfile
index c4f090a8a..f1a524b0c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-ruby '2.1.8'
+ruby '2.2.4'
 
 gem 'rails', '~> 4.1.11'
 
diff --git a/app/views/harvests/_form.html.haml b/app/views/harvests/_form.html.haml
index 67dbda1e0..34946cad1 100644
--- a/app/views/harvests/_form.html.haml
+++ b/app/views/harvests/_form.html.haml
@@ -36,7 +36,7 @@
   .form-group
     = f.label :weight_quantity, 'Weighing (in total):', :class => 'control-label col-md-2'
     .col-md-2
-      = f.number_field :weight_quantity, :class => 'input-small', :step => 'any', :class => 'form-control', :placeholder => 'optional'
+      = f.number_field :weight_quantity, :class => 'input-small form-control', :step => 'any', :placeholder => 'optional'
     .col-md-2
       = f.select(:weight_unit, Harvest::WEIGHT_UNITS_VALUES, {:include_blank => false}, :class => 'form-control')
   .form-group