diff --git a/pgtree/_version.py b/pgtree/_version.py
index 1b1158a..46c3ae7 100644
--- a/pgtree/_version.py
+++ b/pgtree/_version.py
@@ -7,5 +7,5 @@
 
 from incremental import Version
 
-__version__ = Version("pgtree", 1, 1, 0)
+__version__ = Version("pgtree", 1, 1, 1)
 __all__ = ["__version__"]