diff --git a/python-requirements/requirements.txt b/python-requirements/requirements.txt
index efff5e0..a14f1f9 100644
--- a/python-requirements/requirements.txt
+++ b/python-requirements/requirements.txt
@@ -13,7 +13,7 @@ MyCluster>=0.2.0
 traitsui==5.1.0
 grizzled==0.9.4
 junit_xml==1.8
-voluptuous==0.10.5
+voluptuous==0.11.2
 h5py==2.7.1
 netCDF4==1.3.1
 -rnotebook-requirements.txt