diff --git a/environment.yml b/environment.yml
index 6c5fb8c..0e1418d 100644
--- a/environment.yml
+++ b/environment.yml
@@ -7,7 +7,7 @@ dependencies:
 - qe-tools=2.0.0
 - ase=3.22.1
 - matplotlib=3.8.3
-- xmlschema=3.2.0
+- xmlschema=3.3.1
 - jobflow=0.1.17
 - pymatgen=2024.3.1
 - aiida-core=2.5.2