diff --git a/runtime/doc/if_cscop.txt b/runtime/doc/if_cscop.txt
index 8f98161..3fa8f81 100644
--- a/runtime/doc/if_cscop.txt
+++ b/runtime/doc/if_cscop.txt
@@ -1,4 +1,4 @@
-*if_cscop.txt*  For Vim version 9.0.  Last change: 2022 Jan 08
+*if_cscop.txt*  For Vim version 9.1.  Last change: 2022 Jan 08
 
 
 		  VIM REFERENCE MANUAL    by Andy Kahn