diff --git a/Gemfile b/Gemfile
index 9cccfe6..e9624ca 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,10 +2,6 @@ source "http://rubygems.org"
 
 gemspec
 
-if RUBY_VERSION < '1.9'
-  gem "ruby-debug", ">= 0.10.3"
-end
-
 gem 'sdoc'
 gem 'rake'
 gem 'shoulda'
diff --git a/Gemfile.lock b/Gemfile.lock
index 5c1aa01..8ab6b6c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,40 +1,44 @@
 PATH
   remote: .
   specs:
-    bitmask_attributes (0.2.3)
+    bitmask_attributes (0.2.4)
       activerecord (~> 3.0)
 
 GEM
   remote: http://rubygems.org/
   specs:
-    activemodel (3.1.3)
-      activesupport (= 3.1.3)
+    activemodel (3.2.2)
+      activesupport (= 3.2.2)
       builder (~> 3.0.0)
-      i18n (~> 0.6)
-    activerecord (3.1.3)
-      activemodel (= 3.1.3)
-      activesupport (= 3.1.3)
-      arel (~> 2.2.1)
+    activerecord (3.2.2)
+      activemodel (= 3.2.2)
+      activesupport (= 3.2.2)
+      arel (~> 3.0.2)
       tzinfo (~> 0.3.29)
-    activesupport (3.1.3)
+    activesupport (3.2.2)
+      i18n (~> 0.6)
       multi_json (~> 1.0)
-    ansi (1.4.1)
-    arel (2.2.1)
+    ansi (1.4.2)
+    arel (3.0.2)
     builder (3.0.0)
     i18n (0.6.0)
-    json (1.6.1)
-    multi_json (1.0.3)
+    json (1.6.5)
+    multi_json (1.1.0)
     rake (0.9.2.2)
-    rdoc (3.11)
+    rdoc (3.12)
       json (~> 1.4)
     sdoc (0.3.16)
       json (>= 1.1.3)
       rdoc (~> 3.10)
-    shoulda (2.11.3)
-    sqlite3 (1.3.4)
-    turn (0.8.3)
+    shoulda (3.0.1)
+      shoulda-context (~> 1.0.0)
+      shoulda-matchers (~> 1.0.0)
+    shoulda-context (1.0.0)
+    shoulda-matchers (1.0.0)
+    sqlite3 (1.3.5)
+    turn (0.9.4)
       ansi
-    tzinfo (0.3.31)
+    tzinfo (0.3.32)
 
 PLATFORMS
   ruby