diff --git a/Gemfile.lock b/Gemfile.lock
index 920b3a7..fbcadbf 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,8 +7,10 @@ GEM
   remote: http://rubygems.org/
   specs:
     addressable (2.2.8)
-    crack (0.3.1)
+    crack (0.4.3)
+      safe_yaml (~> 1.0.0)
     rake (0.9.2.2)
+    safe_yaml (1.0.5)
     webmock (1.8.8)
       addressable (~> 2.2.8)
       crack (>= 0.1.7)