diff --git a/loopy/version.py b/loopy/version.py
index 9e37d816a57a93bdba67af7912a705c28f787266..8c958afb6d289ab314ca43fdbd5808dc928d2d6f 100644
--- a/loopy/version.py
+++ b/loopy/version.py
@@ -32,4 +32,4 @@ except ImportError:
 else:
     _islpy_version = islpy.version.VERSION_TEXT
 
-DATA_MODEL_VERSION = "v15-islpy%s" % _islpy_version
+DATA_MODEL_VERSION = "v16-islpy%s" % _islpy_version