diff --git a/core/src/main/scala-3/cats/derived/instances.scala b/core/src/main/scala-3/cats/derived/instances.scala
deleted file mode 100644
index 94f56d4a..00000000
--- a/core/src/main/scala-3/cats/derived/instances.scala
+++ /dev/null
@@ -1,24 +0,0 @@
-package cats.derived
-
-import cats.*
-import shapeless3.deriving.Const
-
-private[derived] trait Instances:
-
-  given [X](using X: Monoid[X]): MonoidK[Const[X]] with
-    def empty[A]: Const[X][A] = X.empty
-
-    def combineK[A](x: Const[X][A], y: Const[X][A]): Const[X][A] =
-      X.combine(x, y)
-
-  given [X]: Traverse[Const[X]] with Contravariant[Const[X]] with
-    override def map[A, B](fa: Const[X][A])(f: A => B): Const[X][B] = fa
-
-    def contramap[A, B](fa: X)(f: B => A): X = fa
-
-    def foldLeft[A, B](fa: Const[X][A], b: B)(f: (B, A) => B): B = b
-
-    def foldRight[A, B](fa: Const[X][A], lb: Eval[B])(f: (A, Eval[B]) => Eval[B]): Eval[B] = lb
-
-    def traverse[G[_]: Applicative, A, B](fa: Const[X][A])(f: A => G[B]): G[Const[X][B]] =
-      Applicative[G].pure(fa)
diff --git a/core/src/main/scala-3/cats/derived/package.scala b/core/src/main/scala-3/cats/derived/package.scala
index db721d01..2bd150fa 100644
--- a/core/src/main/scala-3/cats/derived/package.scala
+++ b/core/src/main/scala-3/cats/derived/package.scala
@@ -30,7 +30,7 @@ extension (x: Contravariant.type) inline def derived[F[_]]: Contravariant[F] = D
 extension (x: Invariant.type) inline def derived[F[_]]: Invariant[F] = DerivedInvariant[F]
 extension (x: PartialOrder.type) inline def derived[A]: PartialOrder[A] = DerivedPartialOrder[A]
 
-object semiauto extends Instances:
+object semiauto:
   inline def eq[A]: Eq[A] = DerivedEq[A]
   inline def hash[A]: Hash[A] = DerivedHash[A]
   inline def empty[A]: Empty[A] = DerivedEmpty[A]