diff --git a/src/main/scala/scaladist/Main.scala b/src/main/scala/scaladist/Main.scala
index 46ed37c..bd0a674 100644
--- a/src/main/scala/scaladist/Main.scala
+++ b/src/main/scala/scaladist/Main.scala
@@ -5,8 +5,6 @@ import scala.util.Properties.versionString
 object Main extends App {
   println(s"scala.util.Properties.versionString: $versionString")
   XmlTest.test()
-  SwingTest.test()
-  ParserCombinatorsTest.test()
   ScalapTest.test()
   ReflectTest.test()
 }
diff --git a/src/main/scala/scaladist/ParserCombinatorsTest.scala b/src/main/scala/scaladist/ParserCombinatorsTest.scala
deleted file mode 100644
index 67c23c9..0000000
--- a/src/main/scala/scaladist/ParserCombinatorsTest.scala
+++ /dev/null
@@ -1,16 +0,0 @@
-package scaladist
-
-import scala.util.parsing.combinator._
-
-object ParserCombinatorsTest extends RegexParsers {
-  def sign = "-"
-  def number = "\\d+".r
-  type ResultType = Option[String] ~ String
-  def p: Parser[ResultType] = sign.? ~ number
-
-  def test(): Unit = {
-    (parseAll(p, "-512") : @unchecked) match {
-      case Success(Some("-") ~ "512", _) => ()
-    }
-  }
-}
diff --git a/src/main/scala/scaladist/SwingTest.scala b/src/main/scala/scaladist/SwingTest.scala
deleted file mode 100644
index 7028426..0000000
--- a/src/main/scala/scaladist/SwingTest.scala
+++ /dev/null
@@ -1,10 +0,0 @@
-package scaladist
-
-import scala.swing._
-
-object SwingTest {
-  def test(): Unit = {
-    val label = new Label("hi")
-    assert(label.text == "hi")
-  }
-}