diff --git a/README.rst b/README.rst
index a9964abb..81265428 100644
--- a/README.rst
+++ b/README.rst
@@ -19,7 +19,7 @@ Felis
     :target: https://github.com/lsst/felis/tags
     :alt: Latest Tag
 
-YAML Schema Definition Language for Databases
+Collaborative authoring and management of astronomical data catalogs
 
 Overview
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