diff --git a/thinc/about.py b/thinc/about.py
index 5af1e2bfa..4c2cc699f 100644
--- a/thinc/about.py
+++ b/thinc/about.py
@@ -1,2 +1,2 @@
-__version__ = "v8.1.0.dev0"
+__version__ = "v8.1.0.dev1"
 __release__ = True