diff --git a/.rubocop.yml b/.rubocop.yml
index 33bfca6..95473c6 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -167,3 +167,6 @@ Style/SingleLineMethods:
 Style/EmptyLineBetweenDefs:
   Exclude:
     - "test/dummy/app/models/*"
+
+Style/NumericPredicate:
+  EnforcedStyle: comparison
diff --git a/Gemfile b/Gemfile
index 601f65d..adb1ceb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -17,7 +17,7 @@ end
 
 group :development do
   # code style
-  gem "rubocop",        "0.41.2"
+  gem "rubocop",        "0.42.0"
   gem "pronto",         "0.6.0"
   gem "pronto-rubocop", "0.6.2", require: false
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 3620014..30cc973 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -224,7 +224,7 @@ GEM
       rspec-mocks (~> 3.5.0)
       rspec-support (~> 3.5.0)
     rspec-support (3.5.0)
-    rubocop (0.41.2)
+    rubocop (0.42.0)
       parser (>= 2.3.1.1, < 3.0)
       powerpack (~> 0.1)
       rainbow (>= 1.99.1, < 3.0)
@@ -300,7 +300,7 @@ DEPENDENCIES
   rspec-collection_matchers (~> 1.1.2)
   rspec-core (~> 3.5.1)
   rspec-rails (~> 3.5.1)
-  rubocop (= 0.41.2)
+  rubocop (= 0.42.0)
   simplecov (= 0.12.0)
   simplecov-rcov (= 0.2.3)
   spring