diff --git a/pyproject.toml b/pyproject.toml
index f0fed52..4945417 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ dependencies = [
     "jsonschema~=4.21",
     "base32_lib~=1.0",
     "datacite>=1.1.1,<2",
-    "xmltodict>=0.12,<0.20",
+    "xmltodict>=0.12,<1.1",
     "types-xmltodict>=0.13,<0.20",
     "nameparser>=1.1.1,<2",
     "pycountry>=22.3.5",