diff -Nru libmbassador-java-1.3.1/debian/changelog libmbassador-java-1.3.1/debian/changelog
--- libmbassador-java-1.3.1/debian/changelog	2018-08-11 20:44:01.000000000 +0000
+++ libmbassador-java-1.3.1/debian/changelog	2020-11-23 22:14:14.000000000 +0000
@@ -1,3 +1,12 @@
+libmbassador-java (1.3.1-2) unstable; urgency=medium
+
+  * Ignore junit:junit artifact then we don't have to build-depend on it and
+    avoid a FTBFS. The tests are disabled anyway. (Closes: #975229)
+  * Switch to debhelper-compat = 13.
+  * Declare compliance with Debian Policy 4.5.1.
+
+ -- Markus Koschany <apo@debian.org>  Mon, 23 Nov 2020 23:14:14 +0100
+
 libmbassador-java (1.3.1-1) unstable; urgency=medium
 
   * Initial release. (Closes: #905904)
diff -Nru libmbassador-java-1.3.1/debian/compat libmbassador-java-1.3.1/debian/compat
--- libmbassador-java-1.3.1/debian/compat	2018-08-11 20:44:01.000000000 +0000
+++ libmbassador-java-1.3.1/debian/compat	1970-01-01 00:00:00.000000000 +0000
@@ -1 +0,0 @@
-11
diff -Nru libmbassador-java-1.3.1/debian/control libmbassador-java-1.3.1/debian/control
--- libmbassador-java-1.3.1/debian/control	2018-08-11 20:44:01.000000000 +0000
+++ libmbassador-java-1.3.1/debian/control	2020-11-23 22:14:14.000000000 +0000
@@ -5,12 +5,12 @@
 Uploaders:
  Markus Koschany <apo@debian.org>
 Build-Depends:
- debhelper (>= 11),
+ debhelper-compat (= 13),
  default-jdk,
  libmaven-bundle-plugin-java,
  libservlet3.1-java,
  maven-debian-helper (>= 2.1)
-Standards-Version: 4.2.0
+Standards-Version: 4.5.1
 Vcs-Git: https://salsa.debian.org/java-team/libmbassador-java.git
 Vcs-Browser: https://salsa.debian.org/java-team/libmbassador-java
 Homepage: https://github.com/bennidi/mbassador
diff -Nru libmbassador-java-1.3.1/debian/copyright libmbassador-java-1.3.1/debian/copyright
--- libmbassador-java-1.3.1/debian/copyright	2018-08-11 20:44:01.000000000 +0000
+++ libmbassador-java-1.3.1/debian/copyright	2020-11-23 22:14:14.000000000 +0000
@@ -7,7 +7,7 @@
 License: MIT
 
 Files: debian/*
-Copyright: 2018, Markus Koschany <apo@debian.org>
+Copyright: 2018-2020, Markus Koschany <apo@debian.org>
 License: MIT
 
 License: MIT
diff -Nru libmbassador-java-1.3.1/debian/maven.ignoreRules libmbassador-java-1.3.1/debian/maven.ignoreRules
--- libmbassador-java-1.3.1/debian/maven.ignoreRules	2018-08-11 20:44:01.000000000 +0000
+++ libmbassador-java-1.3.1/debian/maven.ignoreRules	2020-11-23 22:14:14.000000000 +0000
@@ -11,3 +11,4 @@
 org.slf4j slf4j-api * * * *
 org.slf4j slf4j-log4j12 * * * *
 org.sonatype.plugins nexus-staging-maven-plugin * * * *
+junit junit * * * *
diff -Nru libmbassador-java-1.3.1/debian/maven.rules libmbassador-java-1.3.1/debian/maven.rules
--- libmbassador-java-1.3.1/debian/maven.rules	2018-08-11 20:44:01.000000000 +0000
+++ libmbassador-java-1.3.1/debian/maven.rules	2020-11-23 22:14:14.000000000 +0000
@@ -5,4 +5,3 @@
 org.apache.maven.plugins maven-enforcer-plugin * * * *
 org.apache.rat apache-rat-plugin * * * *
 javax.el s/el-api/javax.el-api/ jar s/.*/3.0/
-junit junit * * * *