diff --git a/pyproject.toml b/pyproject.toml
index 88b91cda..6777f89d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "spectree"
-version = "1.2.2"
+version = "1.2.3"
 dynamic = []
 description = "generate OpenAPI document and validate request&response with Python annotations."
 readme = "README.md"