diff --git a/runtime/doc/syntax.txt b/runtime/doc/syntax.txt
index 3357061..040780b 100644
--- a/runtime/doc/syntax.txt
+++ b/runtime/doc/syntax.txt
@@ -1,4 +1,4 @@
-*syntax.txt*	For Vim version 9.0.  Last change: 2023 Dec 27
+*syntax.txt*	For Vim version 9.1.  Last change: 2023 Dec 27
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar