diff --git a/backend/migrations-active/20260824000000-repair-lesson-38-plan-choice.cjs b/backend/migrations-active/20260824000000-repair-lesson-38-plan-choice.cjs
index efbb673..f0af58e 100644
--- a/backend/migrations-active/20260824000000-repair-lesson-38-plan-choice.cjs
+++ b/backend/migrations-active/20260824000000-repair-lesson-38-plan-choice.cjs
@@ -10,8 +10,7 @@ module.exports = {
       // while its multiple-choice data accepts only the first core pattern.
       await queryInterface.sequelize.query(`
         UPDATE community.vocab_grammar_exercise AS exercise
-        SET question_data = JSONB_SET(exercise.question_data, '{question}', TO_JSONB(CAST(:repairedQuestion AS text))),
-            updated_at = NOW()
+        SET question_data = JSONB_SET(exercise.question_data, '{question}', TO_JSONB(CAST(:repairedQuestion AS text)))
         FROM community.vocab_course_lesson AS lesson
         WHERE exercise.lesson_id = lesson.id
           AND (lesson.id = 38 OR (lesson.course_id = 1 AND lesson.lesson_number = 38))
@@ -26,8 +25,7 @@ module.exports = {
       // correct answers (83%) must therefore pass.
       await queryInterface.sequelize.query(`
         UPDATE community.vocab_course_lesson
-        SET target_score_percent = 78,
-            updated_at = NOW()
+        SET target_score_percent = 78
         WHERE id = 38
            OR (course_id = 1 AND lesson_number = 38);
       `, { transaction });