diff --git a/Gemfile b/Gemfile
index ee7c783..b792040 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,7 @@
 source 'https://rubygems.org'
 gemspec
-gem 'cucumber', '~> 1.0.0'
-gem 'rspec', '~> 2.8'
+gem 'cucumber', '~>1.3.2'
+gem 'rspec', '~>2.13.0'
 gem 'rake'
 gem "spork", :path => File.expand_path("../", __FILE__)
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 6072489..6a039ae 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,41 +6,39 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    builder (3.0.0)
+    builder (3.2.2)
     columnize (0.3.6)
-    cucumber (1.0.6)
+    cucumber (1.3.2)
       builder (>= 2.1.2)
-      diff-lcs (>= 1.1.2)
-      gherkin (~> 2.4.18)
-      json (>= 1.4.6)
-      term-ansicolor (>= 1.0.6)
+      diff-lcs (>= 1.1.3)
+      gherkin (~> 2.12.0)
+      multi_json (~> 1.3)
     debugger (1.6.0)
       columnize (>= 0.3.1)
       debugger-linecache (~> 1.2.0)
       debugger-ruby_core_source (~> 1.2.1)
     debugger-linecache (1.2.0)
     debugger-ruby_core_source (1.2.3)
-    diff-lcs (1.1.3)
-    gherkin (2.4.21)
-      json (>= 1.4.6)
-    json (1.6.5)
-    rake (0.9.2.2)
-    rspec (2.8.0)
-      rspec-core (~> 2.8.0)
-      rspec-expectations (~> 2.8.0)
-      rspec-mocks (~> 2.8.0)
-    rspec-core (2.8.0)
-    rspec-expectations (2.8.0)
-      diff-lcs (~> 1.1.2)
-    rspec-mocks (2.8.0)
-    term-ansicolor (1.0.7)
+    diff-lcs (1.2.4)
+    gherkin (2.12.0)
+      multi_json (~> 1.3)
+    multi_json (1.7.7)
+    rake (10.1.0)
+    rspec (2.13.0)
+      rspec-core (~> 2.13.0)
+      rspec-expectations (~> 2.13.0)
+      rspec-mocks (~> 2.13.0)
+    rspec-core (2.13.1)
+    rspec-expectations (2.13.0)
+      diff-lcs (>= 1.1.3, < 2.0)
+    rspec-mocks (2.13.1)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  cucumber (~> 1.0.0)
+  cucumber (~> 1.3.2)
   debugger
   rake
-  rspec (~> 2.8)
+  rspec (~> 2.13.0)
   spork!
diff --git a/features/support/spork_world.rb b/features/support/spork_world.rb
index b602467..6f1e5fa 100644
--- a/features/support/spork_world.rb
+++ b/features/support/spork_world.rb
@@ -53,10 +53,14 @@ def run(command)
     stderr_file = Tempfile.new('spork')
     stderr_file.close
     in_current_dir do
-      gemfile = ENV['BUNDLE_GEMFILE']
-      Bundler.with_clean_env do
-        ENV['BUNDLE_GEMFILE'] = gemfile
+      if command.start_with?("rails new")
         @last_stdout = `bundle exec #{command} 2> #{stderr_file.path}`
+      else
+        gemfile = ENV['BUNDLE_GEMFILE']
+        Bundler.with_clean_env do
+          ENV['BUNDLE_GEMFILE'] = gemfile
+          @last_stdout = `bundle exec #{command} 2> #{stderr_file.path}`
+        end
       end
       @last_exit_status = $?.exitstatus
     end
diff --git a/lib/spork/forker.rb b/lib/spork/forker.rb
index 2d7734a..11c0cd5 100644
--- a/lib/spork/forker.rb
+++ b/lib/spork/forker.rb
@@ -6,10 +6,10 @@
 #     sleep 3
 #     "success"
 #   end
-#   
+#
 #   forker.result # => "success"
 class Spork::Forker
-  
+
   # Raised if the fork died (was killed) before it sent it's response back.
   class ForkDiedException < Exception; end
   def initialize(&block)
@@ -23,16 +23,18 @@ def initialize(&block)
         master_response = Marshal.load(@child_io)
       rescue EOFError
         nil
+      rescue SystemExit => e
+        puts "Error: exit code #{e.status}" unless e.status == 0
       rescue Exception => e
         puts "Exception encountered: #{e.inspect}\nbacktrace:\n#{e.backtrace * %(\n)}"
       end
-      
+
       # terminate, skipping any at_exit blocks.
       exit!(0)
     end
     @child_io.close
   end
-  
+
   # Wait for the fork to finish running, and then return its return value.
   #
   # If the fork was aborted, then result returns nil.
@@ -52,7 +54,7 @@ def result
     @child_pid = nil
     @result
   end
-  
+
   # abort the current running fork
   def abort
     if running?
@@ -61,7 +63,7 @@ def abort
       true
     end
   end
-  
+
   def running?
     return false unless @child_pid
     Process.getpgid(@child_pid)