diff --git a/doc/stamp-vti b/doc/stamp-vti
index eb7ffa1a7..1ddc7738e 100644
--- a/doc/stamp-vti
+++ b/doc/stamp-vti
@@ -1,3 +1,3 @@
 @set UPDATED 7 October 1998
-@set EDITION 1.2.90
-@set VERSION 1.2.90
+@set EDITION 1.2.91
+@set VERSION 1.2.91