diff --git a/src/babashka/impl/classes.clj b/src/babashka/impl/classes.clj
index c01ec66d..80f1ac8c 100644
--- a/src/babashka/impl/classes.clj
+++ b/src/babashka/impl/classes.clj
@@ -93,10 +93,8 @@
           java.io.FilenameFilter
           java.io.FileNotFoundException
           java.io.InputStream
-          java.io.PipedInputStream
           java.io.IOException
           java.io.OutputStream
-          java.io.PipedOutputStream
           java.io.FileReader
           java.io.InputStreamReader
           java.io.PushbackInputStream
diff --git a/test/babashka/java_io_piped_stream_test.clj b/test/babashka/java_io_piped_stream_test.clj
deleted file mode 100644
index 8fc69d47..00000000
--- a/test/babashka/java_io_piped_stream_test.clj
+++ /dev/null
@@ -1,12 +0,0 @@
-(ns babashka.java-io-piped-stream-test
-  (:require [clojure.test :as test :refer [deftest is]])
-  (:import [java.io PipedInputStream PipedOutputStream]))
-
-(deftest piped-stream-test
-  (let [pis (PipedInputStream.)
-        pos (PipedOutputStream.)
-        char-seq [66 97 98 97 115 104 107 97]
-        _ (.connect pis pos)
-        _ (doseq [c char-seq]
-            (.write pos c))]
-    (is (= "Babashka" (apply str (for [_ char-seq] (char (.read pis))))))))