diff --git a/src/babashka/impl/classes.clj b/src/babashka/impl/classes.clj
index b991fd0d..8a33ef47 100644
--- a/src/babashka/impl/classes.clj
+++ b/src/babashka/impl/classes.clj
@@ -119,6 +119,10 @@
           java.io.ByteArrayOutputStream
           java.io.Closeable
           java.io.Console
+          java.io.DataInput
+          java.io.DataInputStream
+          java.io.DataOutput
+          java.io.DataOutputStream
           java.io.File
           java.io.FileFilter
           java.io.FilenameFilter