diff --git a/aoc/src/dev/ctsk/aoc/days/Day04.scala b/aoc/src/dev/ctsk/aoc/days/Day04.scala
index f2df353..7a12c06 100644
--- a/aoc/src/dev/ctsk/aoc/days/Day04.scala
+++ b/aoc/src/dev/ctsk/aoc/days/Day04.scala
@@ -4,8 +4,6 @@ import dev.ctsk.aoc._
 import scala.compiletime.ops.double
 import scala.reflect.ClassTag
 import scala.collection.mutable.ArrayBuffer
-import scala.collection.parallel.CollectionConverters._
-import scala.collection.parallel.ForkJoinTaskSupport
 import java.util.concurrent.ForkJoinPool
 
 object Day04 extends Solver(4):
diff --git a/build.mill b/build.mill
index b923929..5c55d8b 100644
--- a/build.mill
+++ b/build.mill
@@ -4,4 +4,7 @@ import mill._, scalalib._
 
 object aoc extends ScalaModule {
   def scalaVersion = "3.5.2"
+  // def ivyDeps = Agg(
+  //   ivy"org.scala-lang.modules::scala-parallel-collections:1.0.4"
+  // )
 }
\ No newline at end of file