diff --git a/Gemfile.lock b/Gemfile.lock
index 6079012..94b6274 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -95,7 +95,8 @@ GEM
     counter_culture (3.5.2)
       activerecord (>= 4.2)
       activesupport (>= 4.2)
-    crack (0.4.5)
+    crack (0.4.6)
+      bigdecimal
       rexml
     crass (1.0.6)
     date (3.3.4)