diff --git a/.firstdraft_project.yml b/.firstdraft_project.yml
index 70d47ce..5e0ca3b 100644
--- a/.firstdraft_project.yml
+++ b/.firstdraft_project.yml
@@ -1,3 +1,3 @@
 ---
-submission_url: https://grades.firstdraft.com/builds
+submission_url: https://grades-staging.firstdraft.com/builds
 project_token: deprecated
diff --git a/Gemfile b/Gemfile
index 86f60d3..3b515bd 100644
--- a/Gemfile
+++ b/Gemfile
@@ -51,7 +51,7 @@ gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
 group :development, :test do
   gem 'dotenv-rails'
   gem 'pry-rails'
-  gem 'grade_runner', github: 'firstdraft/grade_runner'
+  gem 'grade_runner', github: 'firstdraft/grade_runner', branch: "add-commit-sha"
   gem 'web_git', github: 'firstdraft/web_git'
 end
 
diff --git a/Gemfile.lock b/Gemfile.lock
index d911ad9..034b2e1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,6 +1,7 @@
 GIT
   remote: https://github.com/firstdraft/grade_runner.git
-  revision: 881cce30367bc9a5f15a3e4ac4cb48599dbecec2
+  revision: b2880d874eff8447cc15fc9032eb92e10b493d50
+  branch: add-commit-sha
   specs:
     grade_runner (0.0.1)
 
@@ -62,7 +63,7 @@ GEM
       activerecord (>= 3.2, < 6.0)
       rake (>= 10.4, < 13.0)
     arel (8.0.0)
-    autoprefixer-rails (7.1.1.3)
+    autoprefixer-rails (7.1.2.1)
       execjs
     awesome_print (1.8.0)
     better_errors (2.1.1)
@@ -113,7 +114,7 @@ GEM
     globalid (0.4.0)
       activesupport (>= 4.2.0)
     hashdiff (0.3.4)
-    i18n (0.8.4)
+    i18n (0.8.6)
     jbuilder (2.7.0)
       activesupport (>= 4.2.0)
       multi_json (>= 1.2)
@@ -213,7 +214,7 @@ GEM
     rspec-support (3.6.0)
     ruby_dep (1.5.0)
     safe_yaml (1.0.4)
-    sass (3.4.24)
+    sass (3.4.25)
     sass-rails (5.0.6)
       railties (>= 4.0.0, < 6)
       sass (~> 3.1)
diff --git a/app/controllers/calculations_controller.rb b/app/controllers/calculations_controller.rb
index 0df2d0f..d087423 100644
--- a/app/controllers/calculations_controller.rb
+++ b/app/controllers/calculations_controller.rb
@@ -11,7 +11,7 @@ def word_count
     # ================================================================================
 
 
-    @word_count = "Replace this string with your answer."
+    @word_count = @text.split.count
 
     @character_count_with_spaces = "Replace this string with your answer."