diff -Nru php-klogger-1.2.1/debian/changelog php-klogger-1.2.1/debian/changelog
--- php-klogger-1.2.1/debian/changelog	2019-10-16 22:53:52.000000000 +0000
+++ php-klogger-1.2.1/debian/changelog	2022-04-04 14:39:42.000000000 +0000
@@ -1,3 +1,16 @@
+php-klogger (1.2.1-4ubuntu1) jammy; urgency=medium
+
+  * d/p/0005-psr-logger-compliance.patch: comply with php-psr-log 3.
+    (LP: #1967796)
+
+ -- Athos Ribeiro <athos.ribeiro@canonical.com>  Mon, 04 Apr 2022 11:39:42 -0300
+
+php-klogger (1.2.1-4build1) jammy; urgency=medium
+
+  * No change rebuild for php-psr-log 3
+
+ -- Bryce Harrington <bryce@canonical.com>  Fri, 25 Feb 2022 06:27:22 +0000
+
 php-klogger (1.2.1-4) unstable; urgency=medium
 
   * d/control: Move to Debian PHP PEAR Maintainers
diff -Nru php-klogger-1.2.1/debian/control php-klogger-1.2.1/debian/control
--- php-klogger-1.2.1/debian/control	2019-10-16 22:53:52.000000000 +0000
+++ php-klogger-1.2.1/debian/control	2022-02-25 06:26:58.000000000 +0000
@@ -1,7 +1,8 @@
 Source: php-klogger
 Section: php
 Priority: optional
-Maintainer: Debian PHP PEAR Maintainers <pkg-php-pear@lists.alioth.debian.org>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Debian PHP PEAR Maintainers <pkg-php-pear@lists.alioth.debian.org>
 Uploaders:
  James Valleroy <jvalleroy@mailbox.org>,
  Sunil Mohan Adapa <sunil@medhas.org>
diff -Nru php-klogger-1.2.1/debian/patches/0005-psr-logger-compliance.patch php-klogger-1.2.1/debian/patches/0005-psr-logger-compliance.patch
--- php-klogger-1.2.1/debian/patches/0005-psr-logger-compliance.patch	1970-01-01 00:00:00.000000000 +0000
+++ php-klogger-1.2.1/debian/patches/0005-psr-logger-compliance.patch	2022-04-04 14:39:42.000000000 +0000
@@ -0,0 +1,34 @@
+Description: Comply with psr/log 3
+Author: Athos Ribeiro <athos.ribeiro@canonical.com>
+Forwarded: no
+Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/php-klogger/+bug/1967796
+Last-Update: 2022-04-04
+
+--- a/src/Logger.php
++++ b/src/Logger.php
+@@ -204,11 +204,11 @@
+      * Logs with an arbitrary level.
+      *
+      * @param mixed $level
+-     * @param string $message
++     * @param Stringable|string $message
+      * @param array $context
+-     * @return null
++     * @return void
+      */
+-    public function log($level, $message, array $context = array())
++    public function log($level, \Stringable|string $message, array $context = array()): void
+     {
+         if ($this->logLevels[$this->logLevelThreshold] < $this->logLevels[$level]) {
+             return;
+--- a/composer.json
++++ b/composer.json
+@@ -5,7 +5,7 @@
+     "keywords": ["logging"],
+     "require": {
+         "php": ">=5.3",
+-        "psr/log": "^1.0.0"
++        "psr/log": "^3.0.0"
+     },
+     "require-dev": {
+         "phpunit/phpunit": "4.0.*"
diff -Nru php-klogger-1.2.1/debian/patches/series php-klogger-1.2.1/debian/patches/series
--- php-klogger-1.2.1/debian/patches/series	2019-10-16 22:53:52.000000000 +0000
+++ php-klogger-1.2.1/debian/patches/series	2022-04-04 13:27:32.000000000 +0000
@@ -2,3 +2,4 @@
 0002-Fix-test-loop.patch
 0003-Support-phpunit-v6.patch
 0004-Support-phpunit-v8.patch
+0005-psr-logger-compliance.patch