diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index a6910e5a..98a49790 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.3.2
+current_version = 0.4.0
 files = setup.py appletree/__init__.py
 commit = True
 tag = True
diff --git a/HISTORY.md b/HISTORY.md
index 08a6a2e8..18fcdeba 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,3 +1,20 @@
+v0.4.0 / 2024-05-27
+-------------------
+* Try using jax.random.binomial by @dachengx in https://github.com/XENONnT/appletree/pull/148
+* Turn off add_eps_to_hist in NR and ER by @FaroutYLq in https://github.com/XENONnT/appletree/pull/152
+* Debug when `bins_type` is not set by @dachengx in https://github.com/XENONnT/appletree/pull/153
+* Specifically install `lxml_html_clean` by @dachengx in https://github.com/XENONnT/appletree/pull/157
+* Initialize context from backend by @zihaoxu98 in https://github.com/XENONnT/appletree/pull/156
+* Add `parameter_alias` to translate parameters in `par_config` by @dachengx in https://github.com/XENONnT/appletree/pull/160
+* Allow user to aggressively use memory by @dachengx in https://github.com/XENONnT/appletree/pull/164
+* Fix a bug of plotter which contains inf by @zihaoxu98 in https://github.com/XENONnT/appletree/pull/165
+
+New Contributors
+* @FaroutYLq made their first contribution in https://github.com/XENONnT/appletree/pull/152
+
+**Full Changelog**: https://github.com/XENONnT/appletree/compare/v0.3.2...v0.4.0
+
+
 v0.3.2 / 2024-03-06
 -------------------
 * Remove `scikit-learn` version requirement by @dachengx in https://github.com/XENONnT/appletree/pull/131
diff --git a/appletree/__init__.py b/appletree/__init__.py
index ed64d2cb..2046a0d7 100644
--- a/appletree/__init__.py
+++ b/appletree/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "0.3.2"
+__version__ = "0.4.0"
 
 # stop jax to preallocate memory
 import os
diff --git a/setup.py b/setup.py
index 50176bda..367dea0d 100644
--- a/setup.py
+++ b/setup.py
@@ -21,7 +21,7 @@ def open_requirements(path):
 
 setuptools.setup(
     name="appletree",
-    version="0.3.2",
+    version="0.4.0",
     description="A high-Performance Program simuLatEs and fiTs REsponse of xEnon.",
     author="Appletree contributors, the XENON collaboration",
     long_description=readme + "\n\n" + history,