diff --git a/c_build.py b/c_build.py
index ee34eac..90ee0f2 100644
--- a/c_build.py
+++ b/c_build.py
@@ -5,7 +5,7 @@
 import subprocess
 import requests, zipfile, io
 
-VERSION = '4.0.3'
+VERSION = '4.0.4'
 
 
 def cmake_run(*args):
diff --git a/pyproject.toml b/pyproject.toml
index 36bea07..7440de4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "veryfasttree"
-version = "4.0.3.1"
+version = "4.0.4.1"
 description = "Efficient phylogenetic tree inference for massive taxonomic datasets"
 license = "LGPL-3.0-only"
 authors = [