diff --git a/draper.gemspec b/draper.gemspec
index 1e5e5ad..8edfa7a 100644
--- a/draper.gemspec
+++ b/draper.gemspec
@@ -21,7 +21,7 @@ Gem::Specification.new do |s|
 
   s.add_development_dependency 'ammeter', '0.2.2'
   s.add_development_dependency 'rake', '~> 0.9.2'
-  s.add_development_dependency 'rspec', '~> 2.10.0'
+  s.add_development_dependency 'rspec', '~> 2.10'
   s.add_development_dependency 'yard'
   s.add_development_dependency 'minitest', '~> 3.0' if RUBY_PLATFORM == "java"
 end
diff --git a/spec/draper/base_spec.rb b/spec/draper/base_spec.rb
index 9eb3f5e..1c810d6 100755
--- a/spec/draper/base_spec.rb
+++ b/spec/draper/base_spec.rb
@@ -57,7 +57,7 @@ describe Draper::Base do
           decorates:business
         end
         BusinessDecorator.model_class.should == Business
-      end.should_not raise_error
+      end.to_not raise_error
     end
 
     context("accepts ActiveRecord like :class_name option too") do
@@ -67,7 +67,7 @@ describe Draper::Base do
           decorates :product, :class => Product
         end
         CustomDecorator.model_class.should == Product
-        end.should_not raise_error
+        end.to_not raise_error
       end
 
       it "accepts constants for :class_name" do
@@ -76,7 +76,7 @@ describe Draper::Base do
           decorates :product, :class_name => Product
         end
         CustomDecorator.model_class.should == Product
-        end.should_not raise_error
+        end.to_not raise_error
       end
 
       it "accepts strings for :class" do
@@ -85,7 +85,7 @@ describe Draper::Base do
           decorates :product, :class => 'Product'
         end
         CustomDecorator.model_class.should == Product
-        end.should_not raise_error
+        end.to_not raise_error
       end
 
       it "accepts strings for :class_name" do
@@ -94,7 +94,7 @@ describe Draper::Base do
           decorates :product, :class_name => 'Product'
         end
         CustomDecorator.model_class.should == Product
-        end.should_not raise_error
+        end.to_not raise_error
       end
     end
 
@@ -669,19 +669,19 @@ describe Draper::Base do
     }
 
     it "raise an exception for a blank allows" do
-      expect {blank_allows}.should raise_error(ArgumentError)
+      expect {blank_allows}.to raise_error(ArgumentError)
     end
 
     it "raise an exception for a blank denies" do
-      expect {blank_denies}.should raise_error(ArgumentError)
+      expect {blank_denies}.to raise_error(ArgumentError)
     end
 
     it "raise an exception for calling allows then denies" do
-      expect {using_allows_then_denies}.should raise_error(ArgumentError)
+      expect {using_allows_then_denies}.to raise_error(ArgumentError)
     end
 
     it "raise an exception for calling denies then allows" do
-      expect {using_denies_then_allows}.should raise_error(ArgumentError)
+      expect {using_denies_then_allows}.to raise_error(ArgumentError)
     end
   end