diff --git a/docs/conf.py b/docs/conf.py
index 92e853c..9544637 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -22,7 +22,7 @@
 author = 'Bryan Bartley and Tom Mitchell'
 
 # The full version, including alpha/beta/rc tags
-release = '1.5'
+release = '1.4.1'
 
 
 # -- General configuration ---------------------------------------------------
diff --git a/sbol2/__init__.py b/sbol2/__init__.py
index 579a809..4163905 100644
--- a/sbol2/__init__.py
+++ b/sbol2/__init__.py
@@ -1,4 +1,4 @@
-__version__ = '1.5'
+__version__ = '1.4.1'
 
 # Anything imported here is part of the public API. Limit what gets
 # imported to only those things that are actually needed.
diff --git a/setup.py b/setup.py
index 4a9faa0..419eef3 100644
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,7 @@
 from setuptools import setup
 
 setup(name='sbol2',
-      version='1.5',
+      version='1.4.1',
       description='Pure Python implementation of SBOL 2 standard',
       python_requires='>=3.7',
       url='https://github.com/SynBioDex/pySBOL2',