diff --git a/loopy/version.py b/loopy/version.py
index c415c29a15063b6fd92335fdbaa37ba75ff4019f..a0839c2c40b29d002a40ac18b329467ead37a0c9 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 = "v72-islpy%s" % _islpy_version
+DATA_MODEL_VERSION = "v73-islpy%s" % _islpy_version