diff --git a/README b/README
index 4c5bbe7..9288004 100644
--- a/README
+++ b/README
@@ -65,5 +65,5 @@ ado@ncifcrf.gov for use in the future).  Europeans take note!
 Thanks to these Timezone Caballeros who've made major contributions to the
 time conversion package:  Keith Bostic; Bob Devine; Robert Elz; Guy Harris;
 Mark Horton; John Mackin; and Bradley White.  Thanks also to Michael Bloom,
-Art Neilson, Stephen Prince, and Frank Wales for testing work.
+Art Neilson, Stephen Prince, John Sovereign, and Frank Wales for testing work.
 None of them are responsible for remaining errors.