diff --git a/scripts/xos_dev_reqs.txt b/scripts/xos_dev_reqs.txt
index 5f1f9c3..b306f5a 100644
--- a/scripts/xos_dev_reqs.txt
+++ b/scripts/xos_dev_reqs.txt
@@ -12,7 +12,7 @@
 netaddr==0.7.19
 networkx==1.11
 nose2==0.7.4
-plyxproto==3.0.1
+plyxproto==3.1.0
 pykwalify==1.6.1
 requests-mock==1.5.0
 tosca-parser==0.9.0