diff --git a/Library/Homebrew/dev-cmd/generate-cask-api.rb b/Library/Homebrew/dev-cmd/generate-cask-api.rb
index 5102d863b6..48bcfdbd40 100644
--- a/Library/Homebrew/dev-cmd/generate-cask-api.rb
+++ b/Library/Homebrew/dev-cmd/generate-cask-api.rb
@@ -71,7 +71,7 @@ module Homebrew
           File.write("_data/cask_canonical.json", "#{canonical_json}\n") unless args.dry_run?
 
           OnSystem::VALID_OS_ARCH_TAGS.each do |bottle_tag|
-            variation_casks = all_casks.transform_values do |cask|
+            variation_casks = all_casks.map do |_, cask|
               Homebrew::API.merge_variations(cask, bottle_tag:)
             end
 
diff --git a/Library/Homebrew/dev-cmd/generate-formula-api.rb b/Library/Homebrew/dev-cmd/generate-formula-api.rb
index 5d161ad89d..04a2077f9d 100644
--- a/Library/Homebrew/dev-cmd/generate-formula-api.rb
+++ b/Library/Homebrew/dev-cmd/generate-formula-api.rb
@@ -69,7 +69,7 @@ module Homebrew
           File.write("_data/formula_canonical.json", "#{canonical_json}\n") unless args.dry_run?
 
           OnSystem::VALID_OS_ARCH_TAGS.each do |bottle_tag|
-            variation_formulae = all_formulae.transform_values do |formula|
+            variation_formulae = all_formulae.map do |_, formula|
               Homebrew::API.merge_variations(formula, bottle_tag:)
             end