diff --git a/.rubocop.yml b/.rubocop.yml
index 5ca4365..1d679e3 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -30,6 +30,9 @@ Security:
 Lint:
   Enabled: true
 
+Style/BracesAroundHashParameters:
+  Enabled: true
+
 Style/FrozenStringLiteralComment:
   Enabled: true
 
diff --git a/lib/rack/attack/store_proxy/redis_cache_store_proxy.rb b/lib/rack/attack/store_proxy/redis_cache_store_proxy.rb
index 319445e..8bb3f46 100644
--- a/lib/rack/attack/store_proxy/redis_cache_store_proxy.rb
+++ b/lib/rack/attack/store_proxy/redis_cache_store_proxy.rb
@@ -18,11 +18,11 @@ module Rack
         end
 
         def read(name, options = {})
-          super(name, options.merge!({ raw: true }))
+          super(name, options.merge!(raw: true))
         end
 
         def write(name, value, options = {})
-          super(name, value, options.merge!({ raw: true }))
+          super(name, value, options.merge!(raw: true))
         end
       end
     end
diff --git a/spec/rack_attack_throttle_spec.rb b/spec/rack_attack_throttle_spec.rb
index 0361c7c..b32891a 100644
--- a/spec/rack_attack_throttle_spec.rb
+++ b/spec/rack_attack_throttle_spec.rb
@@ -37,7 +37,7 @@ describe 'Rack::Attack.throttle' do
     it 'should tag the env' do
       last_request.env['rack.attack.matched'].must_equal 'ip/sec'
       last_request.env['rack.attack.match_type'].must_equal :throttle
-      last_request.env['rack.attack.match_data'].must_equal({ :count => 2, :limit => 1, :period => @period })
+      last_request.env['rack.attack.match_data'].must_equal(:count => 2, :limit => 1, :period => @period)
       last_request.env['rack.attack.match_discriminator'].must_equal('1.2.3.4')
     end