diff --git a/Jenkinsfile b/Jenkinsfile
index 19a8d7e..7ef73fa 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -37,7 +37,7 @@ pipeline {
 
 			steps {
 				script {
-					docker.withRegistry('', 'hub.docker.com-springbuildmaster') {
+					docker.withRegistry(p['docker.registry'], p['docker.credentials']) {
 						docker.image(p['docker.java.main.image']).inside(p['docker.java.inside.docker']) {
 							sh "docker login --username ${DOCKER_HUB_USR} --password ${DOCKER_HUB_PSW}"
 							sh 'PROFILE=ci ci/test.sh'
@@ -69,7 +69,7 @@ pipeline {
 
 					steps {
 						script {
-							docker.withRegistry('', 'hub.docker.com-springbuildmaster') {
+							docker.withRegistry(p['docker.registry'], p['docker.credentials']) {
 								docker.image(p['docker.java.11.image']).inside(p['docker.java.inside.docker']) {
 									sh "docker login --username ${DOCKER_HUB_USR} --password ${DOCKER_HUB_PSW}"
 									sh 'PROFILE=ci,java11 ci/test.sh'
@@ -93,7 +93,7 @@ pipeline {
 
 					steps {
 						script {
-							docker.withRegistry('', 'hub.docker.com-springbuildmaster') {
+							docker.withRegistry(p['docker.registry'], p['docker.credentials']) {
 								docker.image(p['docker.java.15.image']).inside(p['docker.java.inside.docker']) {
 									sh "docker login --username ${DOCKER_HUB_USR} --password ${DOCKER_HUB_PSW}"
 									sh 'PROFILE=ci,java11 ci/test.sh'
@@ -124,7 +124,7 @@ pipeline {
 
 			steps {
 				script {
-					docker.withRegistry('', 'hub.docker.com-springbuildmaster') {
+					docker.withRegistry(p['docker.registry'], p['docker.credentials']) {
 						docker.image(p['docker.java.main.image']).inside(p['docker.java.inside.basic']) {
 							sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -s settings.xml -Pci,artifactory -Dmaven.repo.local=/tmp/jenkins-home/.m2/spring-data-r2dbc-non-root ' +
 									'-Dartifactory.server=https://repo.spring.io ' +
@@ -155,7 +155,7 @@ pipeline {
 
 			steps {
 				script {
-					docker.withRegistry('', 'hub.docker.com-springbuildmaster') {
+					docker.withRegistry(p['docker.registry'], p['docker.credentials']) {
 						docker.image('adoptopenjdk/openjdk8:latest').inside('-v $HOME:/tmp/jenkins-home') {
 							sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -s settings.xml -Pci,distribute -Dmaven.repo.local=/tmp/jenkins-home/.m2/spring-data-r2dbc-non-root ' +
 									'-Dartifactory.server=https://repo.spring.io ' +
diff --git a/ci/pipeline.properties b/ci/pipeline.properties
index 5d91102..232bed5 100644
--- a/ci/pipeline.properties
+++ b/ci/pipeline.properties
@@ -1,12 +1,12 @@
 # Java versions
 java.main.tag=8u312-b07-jdk
-java.next.tag=11.0.13_8-jdk
-java.lts.tag=17.0.1_12-jdk
+java.11.tag=11.0.13_8-jdk
+java.15.tag=15.0.2_7-jdk-hotspot
 
 # Docker container images - standard
 docker.java.main.image=eclipse-temurin:${java.main.tag}
-docker.java.next.image=eclipse-temurin:${java.next.tag}
-docker.java.lts.image=eclipse-temurin:${java.lts.tag}
+docker.java.11.image=eclipse-temurin:${java.11.tag}
+docker.java.15.image=adoptopenjdk:${java.15.tag}
 
 # Supported versions of MongoDB
 docker.mongodb.4.0.version=4.0.23
@@ -22,3 +22,7 @@ docker.cassandra.3.version=3.11.10
 # Docker environment settings
 docker.java.inside.basic=-v $HOME:/tmp/jenkins-home
 docker.java.inside.docker=-u root -v /var/run/docker.sock:/var/run/docker.sock -v /usr/bin/docker:/usr/bin/docker -v $HOME:/tmp/jenkins-home
+
+# Credentials
+docker.registry=
+docker.credentials=hub.docker.com-springbuildmaster