diff --git a/app/models/spree/line_item_decorator.rb b/app/models/spree/line_item_decorator.rb
index 365e35b..d80816a 100644
--- a/app/models/spree/line_item_decorator.rb
+++ b/app/models/spree/line_item_decorator.rb
@@ -6,7 +6,7 @@ def update_adjustment(adjustment, source) #source being the order
       0
     end
 
-    adjustment.update_attribute_without_callbacks(:amount, new_amount)
+    adjustment.update_column(:amount, new_amount)
      
    # Spree::Adjustment.skip_callback :save, :after, :update_adjustable
    # adjustment.save
diff --git a/app/models/spree/order_decorator.rb b/app/models/spree/order_decorator.rb
index 92c37de..9c5b049 100644
--- a/app/models/spree/order_decorator.rb
+++ b/app/models/spree/order_decorator.rb
@@ -27,7 +27,7 @@ def create_core_charges
 
     update_totals
 
-    update_attributes_without_callbacks({
+    update_columns({
       :adjustment_total => adjustment_total,
       :total => total
     })
diff --git a/spree_core_charges.gemspec b/spree_core_charges.gemspec
index 5234d8d..8d014ca 100644
--- a/spree_core_charges.gemspec
+++ b/spree_core_charges.gemspec
@@ -6,14 +6,14 @@ Gem::Specification.new do |s|
   s.version     = version
   s.authors     = ['Denis Ivanov']
   s.summary     = 'Ability to have basic core charges added to orders'
-  s.required_ruby_version = '>= 1.9.2'
+  s.required_ruby_version = '>= 1.9.3'
 
   s.files         = `git ls-files`.split("\n")
   s.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")
   s.require_path = 'lib'
   s.requirements << 'none'
 
-  s.add_dependency('spree_core', '~> 2.0')
+  s.add_dependency('spree_core', '~> 2.1')
 
   s.add_development_dependency 'capybara'
   s.add_development_dependency 'factory_girl'