diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8b9534cd601..cd9d5d9e2b6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -41,7 +41,7 @@ jobs:
         include:
           # PostgreSQL (highest, lowest php supported)
           - { branch: master,            php: "8.2", database: pgsql, suite: phpunit-full } # Full run only for master.
-          - { branch: master,            php: "8.0", database: pgsql, suite: phpunit-full }
+          - { branch: master,            php: "8.1", database: pgsql, suite: phpunit-full }
           - { branch: MOODLE_403_STABLE, php: "8.2", database: pgsql, suite: phpunit } # Other branches, quicker run.
           - { branch: MOODLE_403_STABLE, php: "8.0", database: pgsql, suite: phpunit }
           - { branch: MOODLE_402_STABLE, php: "8.2", database: pgsql, suite: phpunit }
@@ -57,7 +57,7 @@ jobs:
           - { branch: MOODLE_39_STABLE,  php: "7.4", database: pgsql, suite: phpunit }
           - { branch: MOODLE_39_STABLE,  php: "7.2", database: pgsql, suite: phpunit }
           # MariaDB (lowest php supported)
-          - { branch: master,            php: "8.0", database: mariadb, suite: phpunit }
+          - { branch: master,            php: "8.1", database: mariadb, suite: phpunit }
           - { branch: MOODLE_403_STABLE, php: "8.0", database: mariadb, suite: phpunit }
           - { branch: MOODLE_402_STABLE, php: "8.0", database: mariadb, suite: phpunit }
           - { branch: MOODLE_401_STABLE, php: "7.4", database: mariadb, suite: phpunit }
diff --git a/README.md b/README.md
index 1dad089472f..fff55130ac2 100644
--- a/README.md
+++ b/README.md
@@ -211,7 +211,7 @@ When you change them, use `bin/moodle-docker-compose down && bin/moodle-docker-c
 | `MOODLE_DOCKER_DB`                        | yes       | pgsql, mariadb, mysql, mssql, oracle  | none          | The database server to run against                                           |
 | `MOODLE_DOCKER_WWWROOT`                   | yes       | path on your file system              | none          | The path to the Moodle codebase you intend to test                           |
 | `MOODLE_DOCKER_DB_VERSION`                | no        | Docker tag - see relevant database page on docker-hub | mysql: 8.0 <br/>pgsql: 13 <br/>mariadb: 10.7 <br/>mssql: 2017-latest <br/>oracle: 21| The database server docker image tag |
-| `MOODLE_DOCKER_PHP_VERSION`               | no        | 8.1, 8.0, 7.4, 7.3, 7.2, 7.1, 7.0, 5.6     | 8.0           | The php version to use                                                       |
+| `MOODLE_DOCKER_PHP_VERSION`               | no        | 8.1, 8.0, 7.4, 7.3, 7.2, 7.1, 7.0, 5.6| 8.1           | The php version to use                                                       |
 | `MOODLE_DOCKER_BROWSER`                   | no        | firefox, chrome,  firefox:&lt;tag&gt;, chrome:&lt;tag&gt; | firefox:3       | The browser to run Behat against. Supports a colon notation to specify a specific Selenium docker image version to use. e.g. firefox:2.53.1 can be used to run with older versions of Moodle (<3.5)              |
 | `MOODLE_DOCKER_PHPUNIT_EXTERNAL_SERVICES` | no        | any value                             | not set       | If set, dependencies for memcached, redis, solr, and openldap are added      |
 | `MOODLE_DOCKER_BBB_MOCK`                  | no        | any value                             | not set       | If set the BigBlueButton mock image is started and configured                |
diff --git a/bin/moodle-docker-compose b/bin/moodle-docker-compose
index cc7e50e828f..5ae1bafaac0 100755
--- a/bin/moodle-docker-compose
+++ b/bin/moodle-docker-compose
@@ -33,7 +33,7 @@ dockercompose="${dockercompose} -f ${basedir}/base.yml"
 dockercompose="${dockercompose} -f ${basedir}/service.mail.yml"
 
 # PHP Version.
-export MOODLE_DOCKER_PHP_VERSION=${MOODLE_DOCKER_PHP_VERSION:-8.0}
+export MOODLE_DOCKER_PHP_VERSION=${MOODLE_DOCKER_PHP_VERSION:-8.1}
 
 # Database flavour.
 dockercompose="${dockercompose} -f ${basedir}/db.${MOODLE_DOCKER_DB}.yml"
diff --git a/bin/moodle-docker-compose.cmd b/bin/moodle-docker-compose.cmd
index 35fc8b30b43..6db20cc944d 100644
--- a/bin/moodle-docker-compose.cmd
+++ b/bin/moodle-docker-compose.cmd
@@ -22,7 +22,7 @@ SET DOCKERCOMPOSE=docker-compose -f "%BASEDIR%\base.yml"
 SET DOCKERCOMPOSE=%DOCKERCOMPOSE% -f "%BASEDIR%\service.mail.yml"
 
 IF "%MOODLE_DOCKER_PHP_VERSION%"=="" (
-    SET MOODLE_DOCKER_PHP_VERSION=8.0
+    SET MOODLE_DOCKER_PHP_VERSION=8.1
 )
 
 SET DOCKERCOMPOSE=%DOCKERCOMPOSE% -f "%BASEDIR%\db.%MOODLE_DOCKER_DB%.yml"