diff --git a/pyproject.toml b/pyproject.toml
index d0d0826..7940163 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "simplug"
-version = "0.4.2"
+version = "0.4.3"
 description = "A simple plugin system for python with async hooks supported"
 authors = ["pwwang <pwwang@pwwang.com>"]
 license = "MIT"
diff --git a/simplug.py b/simplug.py
index 192668c..19f369e 100644
--- a/simplug.py
+++ b/simplug.py
@@ -12,7 +12,7 @@
 
 from diot import OrderedDiot
 
-__version__ = "0.4.2"
+__version__ = "0.4.3"
 
 SimplugImpl = namedtuple("SimplugImpl", ["impl", "has_self"])
 SimplugImpl.__doc__ = """A namedtuple wrapper for hook implementation.