diff --git a/Gemfile.lock b/Gemfile.lock
index b082d35..9d9db1d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,7 +7,7 @@ PATH
       thor (~> 0.14)
 
 GEM
-  remote: http://rubygems.org/
+  remote: https://rubygems.org/
   specs:
     abstract (1.0.0)
     actionmailer (3.0.4)
@@ -101,7 +101,7 @@ GEM
       activesupport (~> 3.0)
       railties (~> 3.0)
       rspec (~> 2.5.0)
-    rubyzip (0.9.4)
+    rubyzip (2.0.0)
     selenium-webdriver (0.1.3)
       childprocess (~> 0.1.5)
       ffi (~> 0.6.3)