diff --git a/loopy/version.py b/loopy/version.py
index 8f68a4958da821981a6922bd14335a2bc487473a..e7d877aa136ef4ad15774388ba9c9cb37b828ed1 100644
--- a/loopy/version.py
+++ b/loopy/version.py
@@ -25,4 +25,4 @@ VERSION = (2014, 1)
 VERSION_STATUS = ""
 VERSION_TEXT = ".".join(str(x) for x in VERSION) + VERSION_STATUS
 
-DATA_MODEL_VERSION = "v5"
+DATA_MODEL_VERSION = "v6"