diff -pruN 0.011-3/debian/changelog 0.011-4/debian/changelog
--- 0.011-3/debian/changelog	2022-05-28 10:27:12.000000000 +0000
+++ 0.011-4/debian/changelog	2025-08-23 15:18:48.000000000 +0000
@@ -1,3 +1,21 @@
+libjson-hyper-perl (0.011-4) unstable; urgency=medium
+
+  * Team upload.
+
+  [ Debian Janitor ]
+  * Update standards version to 4.6.1, no changes needed.
+
+  [ gregor herrmann ]
+  * Use packaged modules for build instead of the vendored copies.
+    (Closes: #1111894)
+  * Update debian/upstream/metadata.
+  * Declare compliance with Debian Policy 4.7.2.
+  * Remove «Rules-Requires-Root: no», which is the current default.
+  * Annotate test-only build dependencies with <!nocheck>.
+  * Remove «Priority: optional», which is the current default.
+
+ -- gregor herrmann <gregoa@debian.org>  Sat, 23 Aug 2025 17:18:48 +0200
+
 libjson-hyper-perl (0.011-3) unstable; urgency=low
 
   * Update standards version to 4.5.0, no changes needed.
diff -pruN 0.011-3/debian/control 0.011-4/debian/control
--- 0.011-3/debian/control	2022-05-28 10:27:12.000000000 +0000
+++ 0.011-4/debian/control	2025-08-23 15:18:48.000000000 +0000
@@ -1,34 +1,30 @@
 Source: libjson-hyper-perl
 Maintainer: Debian Perl Group <pkg-perl-maintainers@lists.alioth.debian.org>
-Uploaders:
- Andrius Merkys <merkys@debian.org>,
+Uploaders: Andrius Merkys <merkys@debian.org>
 Section: perl
-Priority: optional
-Build-Depends:
- debhelper-compat (= 13),
-Build-Depends-Indep:
- libjson-path-perl,
- libjson-perl,
- libtest-simple-perl,
- liburi-perl,
- libwww-perl,
- perl,
-Standards-Version: 4.5.1
-Homepage: https://metacpan.org/release/JSON-Hyper
-Vcs-Git: https://salsa.debian.org/perl-team/modules/packages/libjson-hyper-perl.git
-Vcs-Browser: https://salsa.debian.org/perl-team/modules/packages/libjson-hyper-perl
-Rules-Requires-Root: no
 Testsuite: autopkgtest-pkg-perl
+Build-Depends: debhelper-compat (= 13)
+Build-Depends-Indep: libjson-path-perl <!nocheck>,
+                     libjson-perl <!nocheck>,
+                     libscalar-list-utils-perl,
+                     libtest-simple-perl <!nocheck>,
+                     liburi-perl <!nocheck>,
+                     libwww-perl <!nocheck>,
+                     libyaml-tiny-perl,
+                     perl
+Standards-Version: 4.7.2
+Vcs-Browser: https://salsa.debian.org/perl-team/modules/packages/libjson-hyper-perl
+Vcs-Git: https://salsa.debian.org/perl-team/modules/packages/libjson-hyper-perl.git
+Homepage: https://metacpan.org/release/JSON-Hyper
 
 Package: libjson-hyper-perl
 Architecture: all
-Depends:
- libjson-path-perl,
- libjson-perl,
- liburi-perl,
- libwww-perl,
- ${misc:Depends},
- ${perl:Depends},
+Depends: ${misc:Depends},
+         ${perl:Depends},
+         libjson-path-perl,
+         libjson-perl,
+         liburi-perl,
+         libwww-perl
 Description: extract links from JSON via a schema
  Given a JSON (or equivalent Perl nested hashref/arrayref structure)
  Hyper Schema, JSON::Hyper returns a Perl object capable of interpreting that
diff -pruN 0.011-3/debian/rules 0.011-4/debian/rules
--- 0.011-3/debian/rules	2022-05-28 10:27:12.000000000 +0000
+++ 0.011-4/debian/rules	2025-08-23 15:18:48.000000000 +0000
@@ -3,5 +3,16 @@
 %:
 	dh $@
 
+# we want to use the system version of included modules, so
+# we move the inc/{YAML,Scalar,unicore} away and move it back afterwards
+override_dh_auto_clean:
+	dh_auto_clean
+	[ ! -d $(CURDIR)/inc/YAML.save ]    || mv $(CURDIR)/inc/YAML.save $(CURDIR)/inc/YAML
+	[ ! -d $(CURDIR)/inc/Scalar.save ]  || mv $(CURDIR)/inc/Scalar.save $(CURDIR)/inc/Scalar
+	[ ! -d $(CURDIR)/inc/unicore.save ] || mv $(CURDIR)/inc/unicore.save $(CURDIR)/inc/unicore
+
 override_dh_auto_configure:
+	[ ! -d $(CURDIR)/inc/YAML ]    || mv $(CURDIR)/inc/YAML $(CURDIR)/inc/YAML.save
+	[ ! -d $(CURDIR)/inc/Scalar ]  || mv $(CURDIR)/inc/Scalar $(CURDIR)/inc/Scalar.save
+	[ ! -d $(CURDIR)/inc/unicore ] || mv $(CURDIR)/inc/unicore $(CURDIR)/inc/unicore.save
 	PERL5LIB=. dh_auto_configure
diff -pruN 0.011-3/debian/upstream/metadata 0.011-4/debian/upstream/metadata
--- 0.011-3/debian/upstream/metadata	2022-05-28 10:27:12.000000000 +0000
+++ 0.011-4/debian/upstream/metadata	2025-08-23 15:18:48.000000000 +0000
@@ -1,4 +1,5 @@
 ---
 Archive: CPAN
-Bug-Database: http://rt.cpan.org/Dist/Display.html?Queue=JSON-Hyper
+Bug-Database: https://rt.cpan.org/Dist/Display.html?Queue=JSON-Hyper
 Repository: https://bitbucket.org/tobyink/p5-json-hyper
+Repository-Browse: https://bitbucket.org/tobyink/p5-json-hyper