diff --git a/spec/rails_helper.rb b/spec/rails_helper.rb
index 1133ee99496..9f143f6bd85 100644
--- a/spec/rails_helper.rb
+++ b/spec/rails_helper.rb
@@ -476,23 +476,19 @@ RSpec.configure do |config|
       Capybara::Selenium::Driver.new(app, **mobile_driver_options)
     end
 
-    migrate_column_to_bigint(PostAction, :post_action_type_id)
-    migrate_column_to_bigint(Reviewable, :target_id)
-    migrate_column_to_bigint(ReviewableHistory, :reviewable_id)
-    migrate_column_to_bigint(ReviewableScore, :reviewable_id)
-    migrate_column_to_bigint(ReviewableScore, :reviewable_score_type)
-    migrate_column_to_bigint(SidebarSectionLink, :linkable_id)
-    migrate_column_to_bigint(SidebarSectionLink, :sidebar_section_id)
-    migrate_column_to_bigint(User, :last_seen_reviewable_id)
-    migrate_column_to_bigint(User, :required_fields_version)
-
-    $columns_to_migrate_to_bigint.each do |model, column|
-      if model.is_a?(String)
-        DB.exec("ALTER TABLE #{model} ALTER #{column} TYPE bigint")
-      else
-        DB.exec("ALTER TABLE #{model.table_name} ALTER #{column} TYPE bigint")
-        model.reset_column_information
-      end
+    [
+      [PostAction, :post_action_type_id],
+      [Reviewable, :target_id],
+      [ReviewableHistory, :reviewable_id],
+      [ReviewableScore, :reviewable_id],
+      [ReviewableScore, :reviewable_score_type],
+      [SidebarSectionLink, :linkable_id],
+      [SidebarSectionLink, :sidebar_section_id],
+      [User, :last_seen_reviewable_id],
+      [User, :required_fields_version],
+    ].each do |model, column|
+      DB.exec("ALTER TABLE #{model.table_name} ALTER #{column} TYPE bigint")
+      model.reset_column_information
     end
 
     # Sets sequence's value to be greater than the max value that an INT column can hold. This is done to prevent
@@ -1050,10 +1046,6 @@ def apply_base_chrome_options(options)
   end
 end
 
-def migrate_column_to_bigint(model, column)
-  ($columns_to_migrate_to_bigint ||= []) << [model, column]
-end
-
 class SpecSecureRandom
   class << self
     attr_accessor :value