diff --git a/Gemfile b/Gemfile
index afa7ab6..aed4cdc 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,7 +13,4 @@ end
 group :development do
   gem "rake", ">= 12.0"
   gem "rspec", ">= 3.4"
-end
-
-# pin until we drop ruby 2.4 and then remove this entirely
-gem "parallel", "< 1.20"
\ No newline at end of file
+end
\ No newline at end of file
diff --git a/lib/chefstyle/version.rb b/lib/chefstyle/version.rb
index 23b3e55..816d331 100644
--- a/lib/chefstyle/version.rb
+++ b/lib/chefstyle/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 module Chefstyle
   VERSION = "1.5.6"
-  RUBOCOP_VERSION = "1.5.0"
+  RUBOCOP_VERSION = "1.5.2"
 end
\ No newline at end of file