diff --git a/debian/changelog b/debian/changelog
index ac45023..51ee852 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,11 @@
+access-modifier-checker (1.31-2) UNRELEASED; urgency=medium
+
+ * Use correct machine-readable copyright file URI.
+ * Update watch file format version to 4.
+ * Update standards version to 4.6.2, no changes needed.
+
+ -- Debian Janitor <janitor@jelmer.uk> Sun, 11 Jun 2023 07:27:39 -0000
+
access-modifier-checker (1.31-1) unstable; urgency=medium
* Team upload.
diff --git a/debian/control b/debian/control
index a0c3c11..ccda9fa 100644
--- a/debian/control
+++ b/debian/control
@@ -15,7 +15,7 @@ Build-Depends:
libmaven3-core-java,
libmetainf-services-java,
maven-debian-helper (>= 2.0)
-Standards-Version: 4.6.1
+Standards-Version: 4.6.2
Vcs-Git: https://salsa.debian.org/java-team/access-modifier-checker.git
Vcs-Browser: https://salsa.debian.org/java-team/access-modifier-checker
Homepage: https://github.com/kohsuke/access-modifier
diff --git a/debian/copyright b/debian/copyright
index 210176d..c42f49d 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -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: Custom access modifier checker for Java
Source: https://github.com/kohsuke/access-modifier
diff --git a/debian/watch b/debian/watch
index 0984bec..61c6535 100644
--- a/debian/watch
+++ b/debian/watch
@@ -1,2 +1,2 @@
-version=3
+version=4
https://github.com/kohsuke/access-modifier/tags .*/access-modifier-(.*).tar.gz
