diff --git a/release_history.py b/release_history.py
index 04541f7..0c601b7 100755
--- a/release_history.py
+++ b/release_history.py
@@ -63,6 +63,7 @@ releases = (Tag('1.0.0',   '739', '20120814'),
             Tag('2.4.1', '', '20200915'),
             Tag('2.4.2', '', '20201116'),
             Tag('2.5.0', '', '20210304'),
+            Tag('2.5.1', '', '20210305'),
 )