diff --git a/runtime/doc/ft_mp.txt b/runtime/doc/ft_mp.txt
index 595bc02..11ddd3b 100644
--- a/runtime/doc/ft_mp.txt
+++ b/runtime/doc/ft_mp.txt
@@ -1,4 +1,4 @@
-*ft_mp.txt*	For Vim version 9.0.  Last change: 2022 Aug 12
+*ft_mp.txt*	For Vim version 9.1.  Last change: 2022 Aug 12
 
 This is the documentation for the METAFONT and MetaPost filetype plugins.
 Unless otherwise specified, the commands, settings and mappings defined below