diff --git a/deps_py2.txt b/deps_py2.txt
index db70097d..b3e57986 100644
--- a/deps_py2.txt
+++ b/deps_py2.txt
@@ -7,6 +7,7 @@ netcdf4
 h5py
 bottle
 Pydap
+lxml
 python-dateutil
 mock
 webtest