diff --git a/Library/Homebrew/cmd/install.rb b/Library/Homebrew/cmd/install.rb
index 2958afb0e4..60c272ac9e 100644
--- a/Library/Homebrew/cmd/install.rb
+++ b/Library/Homebrew/cmd/install.rb
@@ -310,7 +310,7 @@ module Homebrew
         Install.perform_preinstall_checks_once
         Install.check_cc_argv(args.cc)
 
-        formulae_installer = Install.formulae_installer(
+        formulae_installer = Install.formula_installers(
           installed_formulae,
           installed_on_request:       !args.as_dependency?,
           installed_as_dependency:    args.as_dependency?,
diff --git a/Library/Homebrew/cmd/upgrade.rb b/Library/Homebrew/cmd/upgrade.rb
index 1959c6ea46..aa23543312 100644
--- a/Library/Homebrew/cmd/upgrade.rb
+++ b/Library/Homebrew/cmd/upgrade.rb
@@ -220,7 +220,7 @@ module Homebrew
 
         Install.perform_preinstall_checks_once
 
-        formulae_installer = Upgrade.formulae_installer(
+        formulae_installer = Upgrade.formula_installers(
           formulae_to_install,
           flags:                      args.flags_only,
           dry_run:                    args.dry_run?,
diff --git a/Library/Homebrew/upgrade.rb b/Library/Homebrew/upgrade.rb
index ade0a24dbf..7aa08e7ef1 100644
--- a/Library/Homebrew/upgrade.rb
+++ b/Library/Homebrew/upgrade.rb
@@ -372,7 +372,7 @@ module Homebrew
       end
 
       unless dry_run
-        dependent_installers = formulae_installer(
+        dependent_installers = formula_installers(
           upgradeable,
           flags:,
           force_bottle:,