diff --git a/requirements.txt b/requirements.txt
index 8913dd858a5f682a0571f1c1c28d5d70a096c422..6405cb5a02f94912903a3a28a73169694f822c43 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ pyparsing==2.0.1
 pytz==2013.9
 requests==2.2.1
 simplejson==3.3.3
--e git+https://github.com/LUMC/spyne.git@spyne-2.10.10-mutalyzer#egg=spyne
+-e git+https://github.com/LUMC/spyne.git@spyne-2.11.0-mutalyzer#egg=spyne
 suds==0.4
 wsgiref==0.1.2
 xlrd==0.9.2