--- a/setup.py
+++ b/setup.py
@@ -64,7 +64,7 @@ setup(name='openpyxl',
         'python (>=2.6.0)',
         ],
     install_requires=[
-        'jdcal', 'et_xmlfile',
+        'jdcal', # absent on debians atm  'et_xmlfile',
         ],
     package_data={
         'openpyxl': ['.constants.json']
