diff --git a/db/migrate/20240905024953_move_solved_topic_custom_field_to_discourse_solved_solutions.rb b/db/migrate/20240905024953_move_solved_topic_custom_field_to_discourse_solved_solutions.rb
index 4326159..3e91f76 100644
--- a/db/migrate/20240905024953_move_solved_topic_custom_field_to_discourse_solved_solutions.rb
+++ b/db/migrate/20240905024953_move_solved_topic_custom_field_to_discourse_solved_solutions.rb
@@ -1,5 +1,7 @@
 # frozen_string_literal: true
 class MoveSolvedTopicCustomFieldToDiscourseSolvedSolutions < ActiveRecord::Migration[7.1]
+  disable_ddl_transaction!
+
   def up
     create_table :discourse_solved_solutions do |t|
       t.integer :topic_id, null: false
@@ -9,9 +11,6 @@ class MoveSolvedTopicCustomFieldToDiscourseSolvedSolutions < ActiveRecord::Migra
       t.timestamps
     end
 
-    add_index :discourse_solved_solutions, :topic_id, unique: true
-    add_index :discourse_solved_solutions, :answer_post_id, unique: true
-
     execute <<-SQL
       INSERT INTO discourse_solved_solutions (
         topic_id,
@@ -36,6 +35,9 @@ class MoveSolvedTopicCustomFieldToDiscourseSolvedSolutions < ActiveRecord::Migra
       AND ua.action_type = #{UserAction::SOLVED}
     SQL
 
+    add_index :discourse_solved_solutions, :topic_id, unique: true, algorithm: :concurrently
+    add_index :discourse_solved_solutions, :answer_post_id, unique: true, algorithm: :concurrently
+
     execute <<-SQL
       DELETE FROM post_custom_fields
       WHERE name = 'is_accepted_answer'