diff --git a/SVN_TAGS b/SVN_TAGS
index 78df640dd..954f3772c 100644
--- a/SVN_TAGS
+++ b/SVN_TAGS
@@ -16,3 +16,4 @@ SRPT 1.0.0				450
 2.1.0					3837 on the 2.1.0.x branch
 2.2.x branch start			3981, which is a copy of r3979 on the 2.1.0.x branch
 2.2.0					4102
+2.2.1					4737 on the 2.2.x branch