diff --git a/doc/dev.md b/doc/dev.md
index ae7f500f..b8795415 100644
--- a/doc/dev.md
+++ b/doc/dev.md
@@ -56,4 +56,7 @@ Keep notes here about how adding libraries and classes to Babashka grows the bin
 
 On macOS:
 
-2020/01/08, 303ca9e825d76a4a45bc4240a59139d342c13964: 36.9MB
+2020/01/08, ..., 38.7mb / 11.3mb zipped
+Added: `clojure.data.xml`. Growth: 1.8mb / ...
+
+2020/01/08, 303ca9e825d76a4a45bc4240a59139d342c13964: 36.9MB Zipped: ...
diff --git a/src/babashka/impl/classes.clj b/src/babashka/impl/classes.clj
index 415c2e41..eacb8514 100644
--- a/src/babashka/impl/classes.clj
+++ b/src/babashka/impl/classes.clj
@@ -161,7 +161,11 @@
                         ;; not supported: {:name "setURLStreamHandlerFactory"}
                         {:name "toExternalForm"}
                         {:name "toString"}
-                        {:name "toURI"}]}}})
+                        {:name "toURI"}]}
+             com.sun.xml.internal.stream.XMLInputFactoryImpl
+             {:methods [{:name "<init>" :parameterTypes []}]}
+             com.sun.xml.internal.stream.XMLOutputFactoryImpl
+             {:methods [{:name "<init>" :parameterTypes []}]}}})
 
 (defmacro gen-class-map []
   (let [classes (concat (:all classes)