diff --git a/runtime/doc/testing.txt b/runtime/doc/testing.txt
index 2d78c0e..dabdd32 100644
--- a/runtime/doc/testing.txt
+++ b/runtime/doc/testing.txt
@@ -1,4 +1,4 @@
-*testing.txt*	For Vim version 9.0.  Last change: 2023 May 18
+*testing.txt*	For Vim version 9.1.  Last change: 2023 May 18
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar