diff --git a/contracts/ontology/requirements.txt b/contracts/ontology/requirements.txt
index 64be074..1111fed 100644
--- a/contracts/ontology/requirements.txt
+++ b/contracts/ontology/requirements.txt
@@ -59,7 +59,7 @@ python-apt==1.6.4
 python-dateutil==2.6.1
 python-debian==0.1.32
 pytz==2018.3
-pyxdg==0.25
+pyxdg==0.26
 PyYAML==3.12
 reportlab==3.4.0
 requests==2.22.0