Ensuring order of execution in Task.sequence for Monix - scala

Question

I have the below use case .
Execute DB operations in async, after that is done send out a kafka event to another microservice so that it reads from DB. However as of now the kafka event is being sent even before the DB operation is complete. My code looks as below :
firstTask = dbOperation1(k)
secondTask = dbOperation2(t.getId, t, existing)
thirdTask = Task(doSomeDBUpdate).executeOn(io).asyncBoundary
Task.sequence(Seq(firstTask, secondTask, thirdTask, pushToKafkaTask))
Is there any way to ensure pushToKafkaTask surely happens after the first three task ?
Adding further code snippets to show what the firstTask , secondTask and pushToKafkaTask look like
val firstTask = dbOperation1(k)
def dbOperation1(k: objPUT)(jt: JdbcTemplate, io: Scheduler): Task[Int] = {
val params = Array(user.userId, DateUtils.currentTimestamp, k.getId)
Task(jt.update(tDao.tUpdate, params: _*)).executeOn(io).asyncBoundary
}
val secondTask = dbOperation2(t.getId, t, existing)
def dbOperation2(id: String,input: objPUTGen, existing: objPUTGen = null,iStd: Boolean = true,
isNSRefUpdate: Boolean = false,)(implicit user: UserDetails, jt: JdbcTemplate): Task[_] =
Task.sequence(Seq(dbOperation3(id, input),
if (iStd) dbOperation4( id, input) else Task.unit, dbOperation5(id, input, existing, isNSRefUpdate) ))
def dbOperation3(id: String, input: TemplateGeneric)(implicit user: UserDetails, jt: JdbcTemplate, io: Scheduler): Task[_] = {
val sDel =
s"""
| delete from "tableName"
| where ID = ?
""".stripMargin
Task(jt.update(sDel, id)).executeOn(io).asyncBoundary
}
def pushToKafkaTask(id: String, cl: String)
(user: UserDetails, kafkaBase: KafkaBase = OKafkaBase): Task[Unit] = {
val msg = MyCaseClass(id, cl)
kafkaBase.pushToKafkaInternalV2(NonEmptyList.of(msg), id, topic)
}