diff --git a/Gemfile b/Gemfile
index dafc369e..89d667e7 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ end
 
 
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
-gem 'rails', '~> 5.2.6'
+gem 'rails', '~> 6.0.4.1'
 
 gem 'pg'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index ff4076a5..143f9c16 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -10,52 +10,65 @@ GIT
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (5.2.6)
-      actionpack (= 5.2.6)
+    actioncable (6.0.4.1)
+      actionpack (= 6.0.4.1)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
-    actionmailer (5.2.6)
-      actionpack (= 5.2.6)
-      actionview (= 5.2.6)
-      activejob (= 5.2.6)
+    actionmailbox (6.0.4.1)
+      actionpack (= 6.0.4.1)
+      activejob (= 6.0.4.1)
+      activerecord (= 6.0.4.1)
+      activestorage (= 6.0.4.1)
+      activesupport (= 6.0.4.1)
+      mail (>= 2.7.1)
+    actionmailer (6.0.4.1)
+      actionpack (= 6.0.4.1)
+      actionview (= 6.0.4.1)
+      activejob (= 6.0.4.1)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (5.2.6)
-      actionview (= 5.2.6)
-      activesupport (= 5.2.6)
+    actionpack (6.0.4.1)
+      actionview (= 6.0.4.1)
+      activesupport (= 6.0.4.1)
       rack (~> 2.0, >= 2.0.8)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.2.6)
-      activesupport (= 5.2.6)
+      rails-html-sanitizer (~> 1.0, >= 1.2.0)
+    actiontext (6.0.4.1)
+      actionpack (= 6.0.4.1)
+      activerecord (= 6.0.4.1)
+      activestorage (= 6.0.4.1)
+      activesupport (= 6.0.4.1)
+      nokogiri (>= 1.8.5)
+    actionview (6.0.4.1)
+      activesupport (= 6.0.4.1)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activejob (5.2.6)
-      activesupport (= 5.2.6)
+      rails-html-sanitizer (~> 1.1, >= 1.2.0)
+    activejob (6.0.4.1)
+      activesupport (= 6.0.4.1)
       globalid (>= 0.3.6)
-    activemodel (5.2.6)
-      activesupport (= 5.2.6)
-    activerecord (5.2.6)
-      activemodel (= 5.2.6)
-      activesupport (= 5.2.6)
-      arel (>= 9.0)
+    activemodel (6.0.4.1)
+      activesupport (= 6.0.4.1)
+    activerecord (6.0.4.1)
+      activemodel (= 6.0.4.1)
+      activesupport (= 6.0.4.1)
     activerecord-import (1.2.0)
       activerecord (>= 3.2)
-    activestorage (5.2.6)
-      actionpack (= 5.2.6)
-      activerecord (= 5.2.6)
+    activestorage (6.0.4.1)
+      actionpack (= 6.0.4.1)
+      activejob (= 6.0.4.1)
+      activerecord (= 6.0.4.1)
       marcel (~> 1.0.0)
-    activesupport (5.2.6)
+    activesupport (6.0.4.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
+      zeitwerk (~> 2.2, >= 2.2.2)
     addressable (2.8.0)
       public_suffix (>= 2.0.2, < 5.0)
-    arel (9.0.0)
     autoprefixer-rails (10.3.3.0)
       execjs (~> 2)
     bcrypt (3.1.16)
@@ -149,18 +162,20 @@ GEM
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
-    rails (5.2.6)
-      actioncable (= 5.2.6)
-      actionmailer (= 5.2.6)
-      actionpack (= 5.2.6)
-      actionview (= 5.2.6)
-      activejob (= 5.2.6)
-      activemodel (= 5.2.6)
-      activerecord (= 5.2.6)
-      activestorage (= 5.2.6)
-      activesupport (= 5.2.6)
+    rails (6.0.4.1)
+      actioncable (= 6.0.4.1)
+      actionmailbox (= 6.0.4.1)
+      actionmailer (= 6.0.4.1)
+      actionpack (= 6.0.4.1)
+      actiontext (= 6.0.4.1)
+      actionview (= 6.0.4.1)
+      activejob (= 6.0.4.1)
+      activemodel (= 6.0.4.1)
+      activerecord (= 6.0.4.1)
+      activestorage (= 6.0.4.1)
+      activesupport (= 6.0.4.1)
       bundler (>= 1.3.0)
-      railties (= 5.2.6)
+      railties (= 6.0.4.1)
       sprockets-rails (>= 2.0.0)
     rails-controller-testing (1.0.5)
       actionpack (>= 5.0.1.rc1)
@@ -171,12 +186,12 @@ GEM
       nokogiri (>= 1.6)
     rails-html-sanitizer (1.4.2)
       loofah (~> 2.3)
-    railties (5.2.6)
-      actionpack (= 5.2.6)
-      activesupport (= 5.2.6)
+    railties (6.0.4.1)
+      actionpack (= 6.0.4.1)
+      activesupport (= 6.0.4.1)
       method_source
       rake (>= 0.8.7)
-      thor (>= 0.19.0, < 2.0)
+      thor (>= 0.20.3, < 2.0)
     rake (13.0.6)
     rb-fsevent (0.11.0)
     rb-inotify (0.10.1)
@@ -242,16 +257,17 @@ GEM
       execjs (>= 0.3.0, < 3)
     warden (1.2.9)
       rack (>= 2.0.9)
-    web-console (3.7.0)
-      actionview (>= 5.0)
-      activemodel (>= 5.0)
+    web-console (4.1.0)
+      actionview (>= 6.0.0)
+      activemodel (>= 6.0.0)
       bindex (>= 0.4.0)
-      railties (>= 5.0)
+      railties (>= 6.0.0)
     websocket-driver (0.7.5)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
     xpath (3.2.0)
       nokogiri (~> 1.8)
+    zeitwerk (2.4.2)
 
 PLATFORMS
   x86_64-linux
@@ -276,7 +292,7 @@ DEPENDENCIES
   omniauth
   pg
   puma (~> 3.0)
-  rails (~> 5.2.6)
+  rails (~> 6.0.4.1)
   rails-controller-testing
   rspec-rails (~> 4.1.2)
   sassc-rails
diff --git a/app/presenters/gauge_presenter.rb b/app/presenters/gauge_presenter.rb
index fd0f6bab..b41193c0 100644
--- a/app/presenters/gauge_presenter.rb
+++ b/app/presenters/gauge_presenter.rb
@@ -27,7 +27,7 @@ class GaugePresenter
   end
 
   def percentage_for(number)
-    number ||= 0
+    return 0 if number.nil?
     scale_minimum = @scale.warning_zone.low_benchmark
     scale_maximum = @scale.ideal_zone.high_benchmark
 
diff --git a/spec/views/schools/show.html.erb_spec.rb b/spec/views/schools/show.html.erb_spec.rb
index 30ae8872..e21bb83e 100644
--- a/spec/views/schools/show.html.erb_spec.rb
+++ b/spec/views/schools/show.html.erb_spec.rb
@@ -11,6 +11,7 @@ RSpec.describe "schools/show", type: :view do
 
   it "renders attributes in <p>" do
     render
+    puts rendered.class
     expect(rendered).to match(/School/)
     expect(rendered).to match(/District/)
   end