diff --git a/setup.py b/setup.py
index 4ce5c622..1ab992c0 100644
--- a/setup.py
+++ b/setup.py
@@ -29,7 +29,7 @@ def get_version(*file_paths: Sequence[str]) -> str:
     'pydantic>=1.6.2,!=1.7.*,!=1.8.*,!=1.9.*',
     'pyOpenSSL>=22.0.0',
     'pytz>=2019.3',
-    'signxml>=2.10.1',
+    'signxml>=3.1.0',
 ]
 
 extras_requirements = {