diff --git a/CHANGELOG.md b/CHANGELOG.md
index b2c3daa..16d0a47 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,18 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [v0.4.1] - 2023-11-22
+
+### Added
+
+### Fixed
+
+- Typo in SB1_E1_I5_V1
+
+### Changed
+
+### Removed
+
 ## [v0.4.0] - 2023-11-19
 
 ### Added
diff --git a/src/kspdg/__init__.py b/src/kspdg/__init__.py
index b4e345c..ff1b614 100644
--- a/src/kspdg/__init__.py
+++ b/src/kspdg/__init__.py
@@ -33,4 +33,4 @@
 from kspdg.sb1.e1_envs import SB1_E1_I2_Env as SB1_E1_I2_V1
 from kspdg.sb1.e1_envs import SB1_E1_I3_Env as SB1_E1_I3_V1
 from kspdg.sb1.e1_envs import SB1_E1_I4_Env as SB1_E1_I4_V1
-from kspdg.sb1.e1_envs import SB1_E1_I5_Env as SB1_E1_I_V1
\ No newline at end of file
+from kspdg.sb1.e1_envs import SB1_E1_I5_Env as SB1_E1_I5_V1
\ No newline at end of file
diff --git a/src/kspdg/version.py b/src/kspdg/version.py
index cd46d98..a64957e 100644
--- a/src/kspdg/version.py
+++ b/src/kspdg/version.py
@@ -5,4 +5,4 @@
 # Single-sourcing package version
 # https://packaging.python.org/guides/single-sourcing-package-version/
 
-VERSION = "0.4.0"
+VERSION = "0.4.1"