diff --git a/debian/changelog b/debian/changelog
index bd9b28c2..a260a580 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+bind9 (1:9.20.18-1~deb13u1deepin1) unstable; urgency=medium
+
+  * Disable Build-Dep xindy for sunway.
+
+ -- lichenggang <lichenggang@deepin.org>  Tue, 10 Feb 2026 14:51:53 +0800
+
 bind9 (1:9.20.18-1~deb13u1) trixie-security; urgency=high
 
   * New upstream version 9.20.18
diff --git a/debian/control b/debian/control
index 1435c734..26532765 100644
--- a/debian/control
+++ b/debian/control
@@ -37,7 +37,7 @@ Build-Depends-Indep: fonts-freefont-otf,
                      texlive-fonts-extra,
                      texlive-latex-recommended,
                      texlive-xetex,
-                     xindy
+                     xindy [!sw64]
 Standards-Version: 4.6.2
 Vcs-Browser: https://salsa.debian.org/dns-team/bind9
 Vcs-Git: https://salsa.debian.org/dns-team/bind9.git -b debian/9.20