Scala Parsing Combinators syntax error with ~ function - scala

Question

I'm making a free time project with scala parsing combinators, following this guide, added to project with sbt with:
libraryDependencies += "org.scala-lang.modules" %% "scala-parser-combinators" % "2.0.0"
I have a Lexer that compile, but the parser give me this error: method ~ in class Parser has changed semantics in version SpecificScalaVersion(2,9,0,Final): The call-by-name argument is evaluated at most once per constructed Parser object, instead of on every need that arises during parsing. on this line of code:
import scala.util.parsing.input.Positional
sealed trait AbstractSyntaxTree extends Positional
sealed trait Instruction extends AbstractSyntaxTree
final case class Label(text: String) extends Instruction
package svm.parser
import scala.util.parsing.combinator.Parsers
import scala.util.parsing.input.{NoPosition, Position, Reader}
import svm.{ParserError, Location}
import svm.lexer._
object SVMParser extends Parsers {
def label: Parser[Label] = positioned {
identifier ~ COL() ^^ { case IDENTIFIER(s) ~ _ => Label(s) }
}
}
This is the output of sbt compile:
[error] -- [E114] Syntax Error: /home/ap/Documents/scala/simple-stack-virtual-machine/src/main/scala/svm/parser/SVMParser.scala:59:15
[error] 59 | identifier ~ COL() ^^ { case IDENTIFIER(s) ~ _ => Label(s) }
[error] | ^^^^^^^^^^^^
[error] | |method ~ in class Parser has changed semantics in version SpecificScalaVersion(2,9,0,Final): The call-by-name argument is evaluated at most once per constructed Parser object, instead of on every need that arises during parsing.
[error] Explanation
[error] ===========
[error] The |method ~ in class Parser is marked with #migration indicating it has changed semantics
[error] between versions and the -Xmigration settings is used to warn about constructs
[error] whose behavior may have changed since version change.
I'm using wrong the ~ operator?