diff --git a/.rubocop.yml b/.rubocop.yml
index fa0fd0f52e..9a82d58959 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -104,10 +104,6 @@ EmptyLines:
 SpaceAroundOperators:
   Enabled: true
 
-# Use spaces around { and before }.
-SpaceAroundBraces:
-  Enabled: true
-
 # No spaces after ( or before ).
 SpaceInsideParens:
   Enabled: true
@@ -234,20 +230,12 @@ MethodAndVariableSnakeCase:
 ClassAndModuleCamelCase:
   Enabled: true
 
-# Prefer each over for.
-AvoidFor:
-  Enabled: true
-
-# Avoid Perl-style global variables.
-AvoidPerlisms:
-  Enabled: true
-
-# Avoid Perl-style regex back references.
-AvoidPerlBackrefs:
-  Enabled: true
+# Allow class vars (but please don't use them)
+ClassVars:
+  Enabled: false
 
-# Avoid the use of class variables.
-AvoidClassVars:
+# We don't require numeric any formatting, but for larger numbers you should
+NumericLiterals:
   Enabled: false
 
 # Don't interpolate global, instance and class variables directly in strings.
@@ -330,10 +318,6 @@ LeadingCommentSpace:
 ColonMethodCall:
   Enabled: true
 
-# Do not introduce global variables.
-AvoidGlobalVars:
-  Enabled: true
-
 # The use of eval represents a serious security risk.
 Eval:
   Enabled: true
@@ -397,10 +381,6 @@ Void:
 UnreachableCode:
   Enabled: true
 
-# Unused local variable.
-UnusedLocalVariable:
-  Enabled: true
-
 # Do not use the same name as outer local variable
 # for block arguments or block local variables.
 ShadowingOuterLocalVariable:
diff --git a/Gemfile b/Gemfile
index d3e4b904c5..e3c082d043 100644
--- a/Gemfile
+++ b/Gemfile
@@ -15,7 +15,7 @@ group :testing do
 
   platforms :ruby_19, :ruby_20, :jruby do
     gem 'coveralls', :require => false
-    gem 'rubocop' if RUBY_VERSION > '1.9'
+    gem 'rubocop', '0.13.1' if RUBY_VERSION > '1.9'
   end
 end
 
diff --git a/spec/mongo/cursor_spec.rb b/spec/mongo/cursor_spec.rb
index f2d702f0c9..322f2234bf 100644
--- a/spec/mongo/cursor_spec.rb
+++ b/spec/mongo/cursor_spec.rb
@@ -149,8 +149,7 @@
 
       context 'when multiple requests are needed' do
         let(:responses) do
-          [results(nonzero, total_docs - delta),
-          results(0, delta)]
+          [results(nonzero, total_docs - delta), results(0, delta)]
         end
 
         it 'does not limit the first query message' do
diff --git a/spec/mongo/protocol/delete_spec.rb b/spec/mongo/protocol/delete_spec.rb
index 22752919f4..7675838fca 100644
--- a/spec/mongo/protocol/delete_spec.rb
+++ b/spec/mongo/protocol/delete_spec.rb
@@ -158,4 +158,3 @@
     end
   end
 end
-
diff --git a/spec/mongo/protocol/get_more_spec.rb b/spec/mongo/protocol/get_more_spec.rb
index d574c506cd..6c9cc23944 100644
--- a/spec/mongo/protocol/get_more_spec.rb
+++ b/spec/mongo/protocol/get_more_spec.rb
@@ -137,4 +137,3 @@
     end
   end
 end
-
diff --git a/spec/mongo/protocol/update_spec.rb b/spec/mongo/protocol/update_spec.rb
index fdc00685f7..8f41223e53 100644
--- a/spec/mongo/protocol/update_spec.rb
+++ b/spec/mongo/protocol/update_spec.rb
@@ -176,4 +176,3 @@
     end
   end
 end
-
diff --git a/spec/support/shared/cursor.rb b/spec/support/shared/cursor.rb
index 8044fe5880..bf185219a6 100644
--- a/spec/support/shared/cursor.rb
+++ b/spec/support/shared/cursor.rb
@@ -16,4 +16,4 @@ def results(cursor_id = 0, nreturned = 5)
   let(:responses) do
     results
   end
-end
\ No newline at end of file
+end