diff -r f385d7d24af9 -r b851a687604d setup.py
--- a/setup.py	Fri Dec 14 18:29:23 2018 +0100
+++ b/setup.py	Fri Dec 14 18:38:02 2018 +0100
@@ -24,7 +24,7 @@
 README = os.path.join(DOCS, 'README.txt')
 HISTORY = os.path.join(DOCS, 'HISTORY.txt')
 
-version = '0.1.30'
+version = '0.1.31'
 long_description = open(README).read() + '\n\n' + open(HISTORY).read()
 
 tests_require = []
@@ -83,6 +83,7 @@
           'pyramid_chameleon',
           'pyramid_mailer',
           'transaction',
+          'tinycss2',
           'z3c.form',
           'z3c.table',
           'zodbupdate',