diff --git a/pubspec.yaml b/pubspec.yaml
index f5f471b..e455c53 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -14,7 +14,7 @@ dependencies:
   crypto: '>=2.0.0 <3.0.0'
   pointycastle: '>=1.0.1 <2.0.0'
   cryptography: ^0.1.2
-  xml: '>=4.0.0 <5.0.0'
+  xml: '>=4.2.0 <5.0.0'
   uuid: '>=2.0.0 <3.0.0'
   meta: '>=1.0.0 <2.0.0'
   clock: '>=1.0.0 <2.0.0'