diff --git a/db/migrate/20231109190504_add_index_to_userss_on_last_sign_in_at.rb b/db/migrate/20231109190504_add_index_to_userss_on_last_sign_in_at.rb
new file mode 100644
index 000000000..09618f56d
--- /dev/null
+++ b/db/migrate/20231109190504_add_index_to_userss_on_last_sign_in_at.rb
@@ -0,0 +1,7 @@
+class AddIndexToUserssOnLastSignInAt < ActiveRecord::Migration[7.0]
+  disable_ddl_transaction!
+
+  def change
+    add_index :users, :last_sign_in_at, algorithm: :concurrently
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 7c78971ab..a708e3424 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -1072,6 +1072,7 @@ ActiveRecord::Schema[7.0].define(version: 2023_11_14_113317) do
     t.datetime "updated_at", precision: 6
     t.index ["confirmation_token"], name: "index_users_on_confirmation_token", unique: true
     t.index ["email"], name: "index_users_on_email", unique: true
+    t.index ["last_sign_in_at"], name: "index_users_on_last_sign_in_at"
     t.index ["requested_merge_into_id"], name: "index_users_on_requested_merge_into_id"
     t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
     t.index ["unlock_token"], name: "index_users_on_unlock_token", unique: true