diff --git a/ipypublish/__init__.py b/ipypublish/__init__.py
index abeeedb..f0ede3d 100644
--- a/ipypublish/__init__.py
+++ b/ipypublish/__init__.py
@@ -1 +1 @@
-__version__ = '0.4.0'
+__version__ = '0.4.1'
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 0000000..c34b498
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,5 @@
+[bdist_wheel]
+# This flag says that the code is written to work on both Python 2 and Python
+# 3. If at all possible, it is good practice to do this. If you cannot, you
+# will need to generate wheels for each Python version that you support.
+universal=1
\ No newline at end of file