diff --git a/setup.py b/setup.py
index fcf22ab..5260f9e 100644
--- a/setup.py
+++ b/setup.py
@@ -38,5 +38,6 @@
     packages=[
         "bioformats"
     ],
-    url="http://github.com/CellProfiler/python-bioformats/"
+    url="http://github.com/CellProfiler/python-bioformats/",
+    version="4.0.4"
 )