diff --git a/loopy/version.py b/loopy/version.py
index f5384a49fe74c585af21a4cd2e6a31a52a1292e6..35a86a995d34437c7a422547e1f9e202652a2498 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 = "v56-islpy%s" % _islpy_version
+DATA_MODEL_VERSION = "v57-islpy%s" % _islpy_version