diff --git a/spec/support/fixtures.rb b/spec/support/fixtures.rb
index 9462e4cc..47b3279f 100644
--- a/spec/support/fixtures.rb
+++ b/spec/support/fixtures.rb
@@ -477,10 +477,9 @@ class IterateCookiesAction < Hanami::Action
   include Hanami::Action::Cookies
 
   def handle(*, res)
-    result = []
-    res.cookies.each do |key, value|
-      result << "'#{key}' has value '#{value}'"
-    end
+    result = res.cookies.map { |key, value|
+      "'#{key}' has value '#{value}'"
+    }
 
     res.body = result.join(", ")
   end
@@ -1781,8 +1780,7 @@ class Each < Hanami::Action
         include Hanami::Action::Session
 
         def handle(_, res)
-          each_result = []
-          res.flash.each { |type, message| each_result << [type, message] }
+          each_result = res.flash.map { |type, message| [type, message] }
           res.body = "flash_each: #{each_result}"
         end
       end
diff --git a/spec/unit/hanami/action/flash_spec.rb b/spec/unit/hanami/action/flash_spec.rb
index 6d6cec06..ed4b5645 100644
--- a/spec/unit/hanami/action/flash_spec.rb
+++ b/spec/unit/hanami/action/flash_spec.rb
@@ -58,6 +58,7 @@
     end
   end
 
+  # rubocop:disable Style/MapIntoArray
   describe "#each" do
     let(:input_hash) { {a: "val"} }
 
@@ -71,6 +72,7 @@
       expect(accumulator).to eq(input_hash.to_a)
     end
   end
+  # rubocop:enable Style/MapIntoArray
 
   describe "#map" do
     let(:input_hash) { {a: "val"} }