diff --git a/setup.py b/setup.py
index c2d67c4a..72aa4db1 100644
--- a/setup.py
+++ b/setup.py
@@ -116,7 +116,7 @@ def run(self):
   name = 'thermo',
   packages = ['thermo'],
   license='MIT',
-  version = '0.4.0',
+  version = '0.4.1',
   description = 'Chemical properties component of Chemical Engineering Design Library (ChEDL)',
   author = 'Caleb Bell',
   install_requires=['fluids>=1.1.0', "scipy>=1.6.0", 'pandas', 'chemicals>=1.3.2'],
@@ -127,7 +127,7 @@ def run(self):
   platforms=["Windows", "Linux", "Mac OS", "Unix"],
   author_email = 'Caleb.Andrew.Bell@gmail.com',
   url = 'https://github.com/CalebBell/thermo',
-  download_url = 'https://github.com/CalebBell/thermo/tarball/0.4.0',
+  download_url = 'https://github.com/CalebBell/thermo/tarball/0.4.1',
   keywords = ['chemical engineering', 'chemistry', 'mechanical engineering',
   'thermodynamics', 'databases', 'cheminformatics', 'engineering','viscosity',
   'density', 'heat capacity', 'thermal conductivity', 'surface tension',