diff --git a/sites/jihsgojpidwr/jp/go/jihs/id-info/surveillance-idwr.html b/sites/jihsgojpidwr/jp/go/jihs/id-info/surveillance-idwr.html
index 1d835213..db4b3227 100644
--- a/sites/jihsgojpidwr/jp/go/jihs/id-info/surveillance-idwr.html
+++ b/sites/jihsgojpidwr/jp/go/jihs/id-info/surveillance-idwr.html
@@ -249,8 +249,8 @@
 											</p>
 											<ul>
 												<li>
-													<a href="./idwr/2026/idwr2026-41.pdf" rel="noopener noreferrer">
-														2026年第41週第41号（33P）
+													<a href="./idwr/2026/idwr2026-42.pdf" rel="noopener noreferrer">
+														2026年第42週第42号（45P）
 													</a>
 												</li>
 												<li>