diff --git a/README.md b/README.md
index ed159dc..703927f 100644
--- a/README.md
+++ b/README.md
@@ -629,7 +629,7 @@ the `publish` confirmation value.
 
 ## Changelog
 
-### Unreleased
+### v0.4.1
 - Type Responses API input parts: `ResponseInputText` (`input_text`),
   `ResponseInputImage` (`input_image`) and `ResponseInputFile` (`input_file`). The old
   `text` / `image` part types still type-check.
diff --git a/apertis/__init__.py b/apertis/__init__.py
index 9352e57..8d675c0 100644
--- a/apertis/__init__.py
+++ b/apertis/__init__.py
@@ -83,7 +83,7 @@
     Usage,
 )
 
-__version__ = "0.4.0"
+__version__ = "0.4.1"
 
 __all__ = [
     # Clients
diff --git a/pyproject.toml b/pyproject.toml
index fd609b8..d66888b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "apertis"
-version = "0.4.0"
+version = "0.4.1"
 description = "Official Python SDK for Apertis AI API"
 readme = "README.md"
 license = "Apache-2.0"