diff --git a/pyproject.toml b/pyproject.toml
index 0125edf..4956b85 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,6 @@
 [project]
 name = "mat"
+version = "0.13.3"
 readme = "README.md"
 requires-python = ">=3.9"