diff --git a/runtime/doc/vimdiff.man b/runtime/doc/vimdiff.man
index a053e6a..a1f05bd 100644
--- a/runtime/doc/vimdiff.man
+++ b/runtime/doc/vimdiff.man
@@ -44,4 +44,4 @@
 
 
 
-                                 2001 March 30                      VIMDIFF(1)
+                                 2021 June 13                       VIMDIFF(1)