diff --git a/src/babashka/impl/classes.clj b/src/babashka/impl/classes.clj
index 165caf0b..c22c2845 100644
--- a/src/babashka/impl/classes.clj
+++ b/src/babashka/impl/classes.clj
@@ -161,6 +161,7 @@
                 java.nio.file.attribute.PosixFilePermission
                 java.nio.file.attribute.PosixFilePermissions])
           java.security.MessageDigest
+          java.security.DigestInputStream
           ~@(when features/java-time?
               `[java.time.format.DateTimeFormatter
                 java.time.Clock