diff --git a/requirements.txt b/requirements.txt
index 922f47b4c..43854d39a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,3 @@
 requests>=2.0
 pbr
+lxml
diff --git a/setup.cfg b/setup.cfg
index 7094d48b0..639c04063 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -31,8 +31,6 @@ data_files =
     bin = dosage
 
 [extras]
-parser =
-    lxml
 css =
     cssselect
 dimensions =