diff --git a/spring-batch-core/src/main/resources/org/springframework/batch/core/migration/4.3/migration-mysql.sql b/spring-batch-core/src/main/resources/org/springframework/batch/core/migration/4.3/migration-mysql.sql
index f9594204c6..bc010280ff 100644
--- a/spring-batch-core/src/main/resources/org/springframework/batch/core/migration/4.3/migration-mysql.sql
+++ b/spring-batch-core/src/main/resources/org/springframework/batch/core/migration/4.3/migration-mysql.sql
@@ -1,3 +1,13 @@
-ALTER TABLE BATCH_JOB_EXECUTION MODIFY CREATE_TIME DATETIME(6), MODIFY START_TIME DATETIME(6), MODIFY END_TIME DATETIME(6), MODIFY LAST_UPDATED DATETIME(6);
-ALTER TABLE BATCH_JOB_EXECUTION_PARAMS MODIFY DATE_VAL DATETIME(6);
-ALTER TABLE BATCH_STEP_EXECUTION MODIFY START_TIME DATETIME(6), MODIFY END_TIME DATETIME(6), MODIFY LAST_UPDATED DATETIME(6);
\ No newline at end of file
+ALTER TABLE BATCH_JOB_EXECUTION
+  MODIFY CREATE_TIME DATETIME(6) NOT NULL,
+  MODIFY START_TIME DATETIME(6),
+  MODIFY END_TIME DATETIME(6),
+  MODIFY LAST_UPDATED DATETIME(6);
+
+ALTER TABLE BATCH_JOB_EXECUTION_PARAMS
+  MODIFY DATE_VAL DATETIME(6);
+
+ALTER TABLE BATCH_STEP_EXECUTION
+  MODIFY START_TIME DATETIME(6) NOT NULL,
+  MODIFY END_TIME DATETIME(6),
+  MODIFY LAST_UPDATED DATETIME(6);
\ No newline at end of file