diff --git a/doc/Guidebook.mn b/doc/Guidebook.mn
index 3d3348c59..056018451 100644
--- a/doc/Guidebook.mn
+++ b/doc/Guidebook.mn
@@ -37,7 +37,7 @@
 .ds f0 "\*(vr
 .ds f1
 .\"DO NOT REMOVE NH_DATESUB .ds f2 "DATE(%B %-d, %Y)
-.ds f2 "January 30, 2023
+.ds f2 "February 3, 2023
 .
 .\" A note on some special characters:
 .\" \(lq = left double quote
diff --git a/doc/Guidebook.tex b/doc/Guidebook.tex
index ae940620e..26c92e172 100644
--- a/doc/Guidebook.tex
+++ b/doc/Guidebook.tex
@@ -46,7 +46,7 @@
 \author{Original version - Eric S. Raymond\\
 (Edited and expanded for 3.7 by Mike Stephenson and others)}
 %DO NOT REMOVE NH_DATESUB \date{DATE(%B %-d, %Y)}
-\date{January 30, 2023}
+\date{February 3, 2023}
 
 \maketitle