diff --git a/setup.cfg b/setup.cfg
index aa04677..5df738c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -3,6 +3,7 @@ name = gcn-kafka
 description = Kafka client for NASA's General Coordinates Network (GCN)
 license = CC0-1.0
 long_description = file:README.md
+long_description_content_type = text/markdown
 author = Leo Singer, Tom Barclay, Eric Burns
 author_email = leo.p.singer@nasa.gov, tb@umbc.edu, ericburns@lsu.edu
 classifiers =