diff --git a/boxtree/version.py b/boxtree/version.py
index 30c96291..0f73bd5f 100644
--- a/boxtree/version.py
+++ b/boxtree/version.py
@@ -1,2 +1,2 @@
-VERSION = (2021, 1)
+VERSION = (2023, 1)
 VERSION_TEXT = ".".join(str(i) for i in VERSION)