diff -Nru normaliz-3.9.4+ds/debian/changelog normaliz-3.9.4+ds/debian/changelog
--- normaliz-3.9.4+ds/debian/changelog	2022-09-10 14:30:00.000000000 +0000
+++ normaliz-3.9.4+ds/debian/changelog	2022-11-20 15:44:53.000000000 +0000
@@ -1,3 +1,13 @@
+normaliz (3.9.4+ds-2) unstable; urgency=medium
+
+  * Debianization:
+    - d/watch, now use GitHub API to avoid breaking change from GitHub web UI
+      (see https://lists.debian.org/debian-devel/2022/09/msg00229.html);
+    - d/copyright:
+      - Format, fix URI.
+
+ -- Jerome Benoit <calculus@rezozer.net>  Sun, 20 Nov 2022 15:44:53 +0000
+
 normaliz (3.9.4+ds-1) unstable; urgency=medium
 
   * New upstream nano version.
diff -Nru normaliz-3.9.4+ds/debian/copyright normaliz-3.9.4+ds/debian/copyright
--- normaliz-3.9.4+ds/debian/copyright	2022-02-27 14:36:44.000000000 +0000
+++ normaliz-3.9.4+ds/debian/copyright	2022-11-20 15:40:19.000000000 +0000
@@ -1,4 +1,4 @@
-Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
 Upstream-Name: normaliz
 Upstream-Contact: normaliz team <normaliz@uos.de>
 Source: https://www.normaliz.uni-osnabrueck.de/
diff -Nru normaliz-3.9.4+ds/debian/watch normaliz-3.9.4+ds/debian/watch
--- normaliz-3.9.4+ds/debian/watch	2022-02-22 09:49:07.000000000 +0000
+++ normaliz-3.9.4+ds/debian/watch	2022-11-20 15:08:25.000000000 +0000
@@ -1,3 +1,4 @@
 version=4
-opts=repack,repacksuffix=+ds,compression=xz,dversionmangle=s/\+ds// \
-https://github.com/Normaliz/Normaliz/releases .*/normaliz-(\d\S+)\.tar\.gz
+opts=repack,repacksuffix=+ds,compression=xz,dversionmangle=s/\+ds//,searchmode=plain \
+https://api.github.com/repos/Normaliz/Normaliz/releases \
+https://github.com/Normaliz/Normaliz/releases/download/v\d[\.\d]*/normaliz-(\d[\d.-]+)\.tar\.gz