diff --git a/Gemfile.lock b/Gemfile.lock
index ca68aef..677ea46 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,8 +1,8 @@
 PATH
   remote: .
   specs:
-    fuel_purchase (0.0.12)
-      emitter (~> 0.3)
+    fuel_purchase (0.0.14)
+      emitter
 
 GEM
   remote: http://rubygems.org/
@@ -36,12 +36,12 @@ GEM
       activesupport (>= 2.3.4)
     conversions (1.4.5)
       activesupport (>= 2.3.4)
-    cucumber (0.8.3)
+    cucumber (0.9.4)
       builder (~> 2.1.2)
       diff-lcs (~> 1.1.2)
-      gherkin (~> 2.0.2)
-      json_pure (~> 1.4.3)
-      term-ansicolor (~> 1.0.4)
+      gherkin (~> 2.2.9)
+      json (~> 1.4.6)
+      term-ansicolor (~> 1.0.5)
     data_miner (0.5.7)
       activerecord (>= 2.3.4)
       activesupport (>= 2.3.4)
@@ -54,8 +54,8 @@ GEM
       remote_table (~> 0.2.32)
       taps (>= 0.3.11)
     diff-lcs (1.1.2)
-    earth (0.3.2)
-      activerecord (>= 3.0.0.beta4)
+    earth (0.3.8)
+      activerecord (~> 3)
       cohort_scope (>= 0.0.7)
       conversions (>= 1.4.5)
       data_miner (~> 0.5.6)
@@ -63,18 +63,17 @@ GEM
       geokit (>= 1.5.0)
       loose_tight_dictionary (>= 0.0.8)
       weighted_average (>= 0.0.4)
-    emitter (0.3.0)
-      activesupport (>= 3.0.0)
-      characterizable (~> 0.1.2)
-      cohort_scope (~> 0.1.0)
-      data_miner (~> 0.5.5)
-      earth (~> 0.3.1)
-      falls_back_on (= 0.0.3)
-      fast_timestamp (>= 0.0.4)
+    emitter (0.3.3)
+      activesupport (~> 3)
+      characterizable (~> 0.1)
+      cohort_scope (~> 0.1)
+      data_miner (~> 0.5)
+      earth (~> 0.3)
+      falls_back_on (~> 0.0.3)
       leap (~> 0.4.4)
-      summary_judgement (>= 1.3.8)
-      timeframe (>= 0.0.8)
-      weighted_average (>= 0.0.4)
+      summary_judgement (~> 1.3)
+      timeframe (~> 0.0.8)
+      weighted_average (~> 0.0.4)
     errata (0.2.4)
       activesupport (>= 2.3.4)
       remote_table (>= 0.2.31)
@@ -84,18 +83,19 @@ GEM
     fast_timestamp (0.0.4)
     gemcutter (0.6.1)
     geokit (1.5.0)
-    gherkin (2.0.2)
-      trollop (~> 1.16.2)
+    gherkin (2.2.9)
+      json (~> 1.4.6)
+      term-ansicolor (~> 1.0.5)
     git (1.2.5)
-    hoe (2.7.0)
+    hoe (2.8.0)
       rake (>= 0.8.7)
-      rubyforge (>= 2.0.4)
     hpricot (0.8.3)
     i18n (0.5.0)
     jeweler (1.4.0)
       gemcutter (>= 0.1.0)
       git (>= 1.2.5)
       rubyforge (>= 2.0.0)
+    json (1.4.6)
     json_pure (1.4.6)
     leap (0.4.5)
       activesupport (~> 3.0.0)
@@ -108,9 +108,12 @@ GEM
       amatch (>= 0.2.5)
       andand (>= 1.3.1)
     mime-types (1.16)
+    mustache (0.12.0)
     nokogiri (1.4.4)
     rack (1.2.1)
     rake (0.8.7)
+    rcov (0.9.9)
+    rdiscount (1.6.5)
     rdoc (2.5.11)
     remote_table (0.2.32)
       activesupport (>= 2.3.4)
@@ -120,20 +123,25 @@ GEM
       slither (>= 0.99.4)
     rest-client (1.6.1)
       mime-types (>= 1.16)
+    rocco (0.5)
+      mustache
+      rdiscount
     roo (1.3.11)
       GData (>= 0.0.4)
       hpricot (>= 0.6)
       libxml-ruby (>= 1.1.3)
       rubyzip (>= 0.9.1)
       spreadsheet (>= 0.6.4)
-    rspec (2.2.0)
-      rspec-core (~> 2.2)
-      rspec-expectations (~> 2.2)
-      rspec-mocks (~> 2.2)
-    rspec-core (2.2.1)
-    rspec-expectations (2.2.0)
-      diff-lcs (~> 1.1.2)
-    rspec-mocks (2.2.0)
+    rspec (2.0.1)
+      rspec-core (~> 2.0.1)
+      rspec-expectations (~> 2.0.1)
+      rspec-mocks (~> 2.0.1)
+    rspec-core (2.0.1)
+    rspec-expectations (2.0.1)
+      diff-lcs (>= 1.1.2)
+    rspec-mocks (2.0.1)
+      rspec-core (~> 2.0.1)
+      rspec-expectations (~> 2.0.1)
     ruby-ole (1.2.11.1)
     rubyforge (2.0.4)
       json_pure (>= 1.1.7)
@@ -142,16 +150,23 @@ GEM
     sinatra (1.0)
       rack (>= 1.0)
     slither (0.99.4)
-    sniff (0.3.1)
+    sniff (0.4.5)
       aaronh-chronic (~> 0.3.9)
       activerecord (~> 3.0.0)
       activesupport (~> 3.0.0)
       common_name (~> 0.1.5)
+      cucumber (~> 0.9.4)
       earth (~> 0.3.1)
       fast_timestamp (~> 0.0.4)
+      jeweler (~> 1.4.0)
+      rake
+      rcov
+      rdoc
+      rocco
+      rspec (~> 2.0.0)
       sqlite3-ruby (~> 1.3.0)
       timeframe (~> 0.0.8)
-    spreadsheet (0.6.4.1)
+    spreadsheet (0.6.5.0)
       ruby-ole
     sqlite3-ruby (1.3.2)
     summary_judgement (1.3.8)
@@ -167,7 +182,6 @@ GEM
     term-ansicolor (1.0.5)
     timeframe (0.0.8)
       activesupport (>= 2.3.5)
-    trollop (1.16.2)
     tzinfo (0.3.23)
     verbs (2.0.9)
       activesupport (>= 2.3.4)
@@ -182,11 +196,10 @@ PLATFORMS
 DEPENDENCIES
   activerecord (~> 3)
   bundler (~> 1.0.0)
-  cucumber (= 0.8.3)
-  emitter (~> 0.3)
+  emitter
   fuel_purchase!
   jeweler (= 1.4.0)
   rake
   rdoc
   rspec (~> 2)
-  sniff
+  sniff (~> 0.4.5)
diff --git a/Rakefile b/Rakefile
index 8c3e486..87ad63d 100644
--- a/Rakefile
+++ b/Rakefile
@@ -39,13 +39,12 @@ require_or_fail('jeweler', 'Jeweler (or a dependency) not available. Install it
       Dir.glob(File.join('lib', 'test_support', '**/*.rb'))
     gem.add_development_dependency 'activerecord', '~>3'
     gem.add_development_dependency 'bundler', '~>1.0.0'
-    gem.add_development_dependency 'cucumber', '=0.8.3'
     gem.add_development_dependency 'jeweler', '=1.4.0'
     gem.add_development_dependency 'rake'
     gem.add_development_dependency 'rdoc'
     gem.add_development_dependency 'rspec', '~>2'
-    gem.add_development_dependency 'sniff' unless ENV['LOCAL_SNIFF']
-    gem.add_dependency 'emitter', '~>0.3'
+    gem.add_development_dependency 'sniff', '~>0.4.5' unless ENV['LOCAL_SNIFF']
+    gem.add_dependency 'emitter'
   end
   Jeweler::GemcutterTasks.new
 end
diff --git a/fuel_purchase.gemspec b/fuel_purchase.gemspec
index 0ea5b2d..4f3f303 100644
--- a/fuel_purchase.gemspec
+++ b/fuel_purchase.gemspec
@@ -9,7 +9,7 @@ Gem::Specification.new do |s|
 
   s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
   s.authors = ["Andy Rossmeissl", "Seamus Abshere", "Ian Hough", "Matt Kling", "Derek Kastner"]
-  s.date = %q{2010-12-07}
+  s.date = %q{2010-12-15}
   s.description = %q{A software model in Ruby for the greenhouse gas emissions of a fuel purchase}
   s.email = %q{andy@rossmeissl.net}
   s.extra_rdoc_files = [
@@ -47,34 +47,31 @@ Gem::Specification.new do |s|
     if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
       s.add_development_dependency(%q<activerecord>, ["~> 3"])
       s.add_development_dependency(%q<bundler>, ["~> 1.0.0"])
-      s.add_development_dependency(%q<cucumber>, ["= 0.8.3"])
       s.add_development_dependency(%q<jeweler>, ["= 1.4.0"])
       s.add_development_dependency(%q<rake>, [">= 0"])
       s.add_development_dependency(%q<rdoc>, [">= 0"])
       s.add_development_dependency(%q<rspec>, ["~> 2"])
-      s.add_development_dependency(%q<sniff>, [">= 0"])
-      s.add_runtime_dependency(%q<emitter>, ["~> 0.3"])
+      s.add_development_dependency(%q<sniff>, ["~> 0.4.5"])
+      s.add_runtime_dependency(%q<emitter>, [">= 0"])
     else
       s.add_dependency(%q<activerecord>, ["~> 3"])
       s.add_dependency(%q<bundler>, ["~> 1.0.0"])
-      s.add_dependency(%q<cucumber>, ["= 0.8.3"])
       s.add_dependency(%q<jeweler>, ["= 1.4.0"])
       s.add_dependency(%q<rake>, [">= 0"])
       s.add_dependency(%q<rdoc>, [">= 0"])
       s.add_dependency(%q<rspec>, ["~> 2"])
-      s.add_dependency(%q<sniff>, [">= 0"])
-      s.add_dependency(%q<emitter>, ["~> 0.3"])
+      s.add_dependency(%q<sniff>, ["~> 0.4.5"])
+      s.add_dependency(%q<emitter>, [">= 0"])
     end
   else
     s.add_dependency(%q<activerecord>, ["~> 3"])
     s.add_dependency(%q<bundler>, ["~> 1.0.0"])
-    s.add_dependency(%q<cucumber>, ["= 0.8.3"])
     s.add_dependency(%q<jeweler>, ["= 1.4.0"])
     s.add_dependency(%q<rake>, [">= 0"])
     s.add_dependency(%q<rdoc>, [">= 0"])
     s.add_dependency(%q<rspec>, ["~> 2"])
-    s.add_dependency(%q<sniff>, [">= 0"])
-    s.add_dependency(%q<emitter>, ["~> 0.3"])
+    s.add_dependency(%q<sniff>, ["~> 0.4.5"])
+    s.add_dependency(%q<emitter>, [">= 0"])
   end
 end