diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 0bfc51ee..1fb4708e 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.4.0
+current_version = 0.4.1
 commit = True
 tag = True
 
diff --git a/README.md b/README.md
index 2546a3c6..fa9684e0 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# KFactory 0.4.0
+# KFactory 0.4.1
 
 Kfactory is a [gdsfactory](https://github.com/gdsfactory/gdsfactory)-like tool. It is built with [KLayout](https://klayout.de) as a backend instead of gdstk, but aims to offer the similar featuers.
 
diff --git a/docs/conf.py b/docs/conf.py
index fe276687..9ed5a2b8 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -1,5 +1,5 @@
 project = "kfactory"
-version = "0.4.0"
+version = "0.4.1"
 copyright = "2022"
 # author = "kfactory"
 
diff --git a/pyproject.toml b/pyproject.toml
index 481e967e..56381636 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@ classifiers = [
 	"Programming Language :: Python :: 3.11",
 	"Operating System :: OS Independent",
 ]
-version = "0.4.0"
+version = "0.4.1"
 authors = [
     {name = "gdsfactory community", email = "contact@gdsfactory.com"},
 ]
diff --git a/src/kfactory/__init__.py b/src/kfactory/__init__.py
index c82bafbb..b8da15bb 100644
--- a/src/kfactory/__init__.py
+++ b/src/kfactory/__init__.py
@@ -26,15 +26,15 @@
 from .config import logger
 
 
-__version__ = "0.4.0"
+__version__ = "0.4.1"
 
 
 def __getattr__(name: str) -> "KLib":
-    # TODO: Remove with 0.4.0
+    # TODO: Remove with 0.4.1
     if name != "library":
         raise AttributeError(f"module '{__name__}' has no attribute '{name}'")
     logger.opt(ansi=True).bind(with_backtrace=True).warning(
-        "<red>DeprecationWarning:</red> library has been renamed to klib since version 0.3.1 and library will be removed with 0.4.0, update your code to use klib instead",
+        "<red>DeprecationWarning:</red> library has been renamed to klib since version 0.3.1 and library will be removed with 0.4.1, update your code to use klib instead",
     )
     return klib