diff --git a/loopy/version.py b/loopy/version.py
index 36a48e2f2e6975c83b658a7f38c231e287fd74bc..46fedd708b8a3c047e843c4cac7ac6d5b855335b 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 = "v62-islpy%s" % _islpy_version
\ No newline at end of file
+DATA_MODEL_VERSION = "v63-islpy%s" % _islpy_version
\ No newline at end of file