diff --git a/setup.py b/setup.py
index 8738f89..e0b1278 100644
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,7 @@ with open(path.join(here, 'README.rst'), encoding='utf-8') as f:
 
 # tryton.cfg einlesen
 config = ConfigParser()
-config.readfp(open('tryton.cfg'))
+config.read_file(open('tryton.cfg'))
 info = dict(config.items('tryton'))
 for key in ('depends', 'extras_depend', 'xml'):
     if key in info: