diff --git a/setup.py b/setup.py
index c00cba7..6e032d6 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 
 setup(
     name="lightgbmlss",
-    version="0.3.0",
+    version="0.4.0",
     description="LightGBMLSS - An extension of LightGBM to probabilistic modelling and prediction",
     long_description=open("README.md").read(),
     long_description_content_type="text/markdown",
@@ -29,6 +29,7 @@
         "tqdm~=4.65.0",
         "matplotlib~=3.7.2",
         "ipython~=8.14.0",
+        "ipython~=8.14.0",
     ],
     extras_require={
         "docs": ["mkdocs", "mkdocstrings[python]", "mkdocs-jupyter"]