diff --git a/runtime/doc/pattern.txt b/runtime/doc/pattern.txt
index 70227a7..2d1898d 100644
--- a/runtime/doc/pattern.txt
+++ b/runtime/doc/pattern.txt
@@ -1,4 +1,4 @@
-*pattern.txt*   For Vim version 9.0.  Last change: 2023 Oct 23
+*pattern.txt*   For Vim version 9.1.  Last change: 2023 Oct 23
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar