migrate: follow upstream change
1 files changed, 1 insertions(+), 1 deletions(-)

M tshistory_supervision/migrate.py
M tshistory_supervision/migrate.py +1 -1
@@ 8,7 8,7 @@ from tshistory_supervision import __vers
 
 class Migrator(_Migrator):
     _order = 1
-    _known_version = __version__
+    _package_version = __version__
     _package = 'tshistory-supervision'
 
     def initial_migration(self):