diff --git a/build.gradle b/build.gradle
index 4522ba8..0b28595 100644
--- a/build.gradle
+++ b/build.gradle
@@ -14,24 +14,15 @@
  * limitations under the License.
  */
 
-description = "Spring CredHub"
-
-buildscript {
-	repositories {
-		gradlePluginPortal()
-		mavenCentral()
-		maven { url 'https://repo.spring.io/plugins-release' }
-	}
-	dependencies {
-		classpath 'io.spring.gradle:propdeps-plugin:0.0.10.RELEASE'
-		classpath 'io.spring.gradle:dependency-management-plugin:1.0.8.RELEASE'
-		classpath 'io.spring.gradle:spring-io-plugin:0.0.8.RELEASE'
-		classpath 'org.asciidoctor:asciidoctor-gradle-plugin:1.5.12'
-		classpath 'io.spring.nohttp:nohttp-gradle:0.0.1.RELEASE'
-		classpath 'io.spring.javaformat:spring-javaformat-gradle-plugin:0.0.22'
-	}
+plugins {
+	id 'checkstyle'
+	id 'io.spring.nohttp' version '0.0.10'
+	id 'io.spring.dependency-management' version '1.0.10.RELEASE'
+	id 'io.spring.javaformat' version '0.0.29'
 }
 
+description = "Spring CredHub"
+
 ext {
 	springVersion = "5.2.5.RELEASE"
 	springBootVersion = "2.2.6.RELEASE"
@@ -53,57 +44,46 @@ ext {
 	] as String[]
 }
 
-allprojects {
+configure(allprojects) {
 	apply plugin: 'java'
-	apply plugin: 'maven'
 	apply plugin: 'eclipse'
 
-	apply plugin: 'propdeps'
-	apply plugin: 'propdeps-maven'
-	apply plugin: 'propdeps-idea'
-	apply plugin: 'propdeps-eclipse'
 	apply plugin: "io.spring.dependency-management"
-	apply plugin: 'org.asciidoctor.gradle.asciidoctor'
-
-	apply plugin: 'io.spring.nohttp'
-	apply plugin: 'io.spring.javaformat'
-	apply plugin: 'checkstyle'
-
-	checkstyle {
-		toolVersion = 8.29
-		configDir = new File("${rootProject.projectDir}/src/checkstyle")
-	}
 
 	group = 'org.springframework.credhub'
 
-	asciidoctor {
-		sourceDir = new File("docs/src/main/asciidoc")
-		outputDir = new File("docs/target/generated-docs")
-		options = [
-				'doctype': 'book'
-		]
-		attributes = [
-				'source-highlighter': 'coderay'
-		]
+	repositories {
+		mavenCentral()
+		maven { url 'https://repo.spring.io/release' }
+	}
+	if (version =~ /((-M|-RC)[0-9]+|-SNAPSHOT)$/) {
+		repositories {
+			maven { url 'https://repo.spring.io/milestone' }
+		}
+	}
+	if (version.endsWith('-SNAPSHOT')) {
+		repositories {
+			maven { url 'https://repo.spring.io/snapshot' }
+		}
+	}
+}
+
+configure(allprojects - [project(':spring-credhub-docs')]) {
+	apply plugin: 'checkstyle'
+	apply plugin: 'io.spring.nohttp'
+	apply plugin: 'io.spring.javaformat'
+
+	checkstyle {
+		toolVersion = "8.45.1"
+		configDirectory.set(rootProject.file("src/checkstyle"))
 	}
 
-	if (project.hasProperty('platformVersion')) {
-		apply plugin: 'spring-io'
-
-		// necessary to resolve the Spring IO versions (which may include snapshots)
-		repositories {
-			maven { url "https://repo.spring.io/libs-snapshot" }
-		}
-
-		dependencyManagement {
-			springIoTestRuntime {
-				imports {
-					mavenBom("io.spring.platform:platform-bom:${platformVersion}") {
-						bomProperty "mockito.version", "${mockitoVersion}"
-					}
-				}
-			}
-		}
+	nohttp {
+		allowlistFile = rootProject.file("src/nohttp/allowlist.lines")
+	}
+	
+	dependencies {
+		checkstyle("io.spring.javaformat:spring-javaformat-checkstyle:0.0.29")
 	}
 }
 
@@ -122,48 +102,55 @@ subprojects {
 		options.encoding = 'UTF-8'
 	}
 
-	task packageSources(type: Jar) {
-		classifier = 'sources'
-		from sourceSets.main.allSource
-	}
-
-	task javadocJar(type: Jar) {
-		classifier = "javadoc"
-		from javadoc
-	}
-
-	artifacts {
-		archives packageSources
-		archives javadocJar
+	java {
+		registerFeature('reactive') {
+			usingSourceSet(sourceSets.main)
+		}
+		registerFeature('security') {
+			usingSourceSet(sourceSets.main)
+		}
+		registerFeature('httpclient') {
+			usingSourceSet(sourceSets.main)
+		}
+		registerFeature('okhttp') {
+			usingSourceSet(sourceSets.main)
+		}
+		registerFeature('netty') {
+			usingSourceSet(sourceSets.main)
+		}
 	}
 
 	javadoc {
 		options.encoding = 'UTF-8'
-		options.memberLevel = org.gradle.external.javadoc.JavadocMemberLevel.PROTECTED
+		options.memberLevel = JavadocMemberLevel.PROTECTED
 		options.author = true
 		options.header = project.name
 	}
 
 	dependencies {
-		checkstyle("io.spring.javaformat:spring-javaformat-checkstyle:0.0.22")
-
 		testCompile("junit:junit:$junitVersion")
 		testCompile("org.mockito:mockito-core:$mockitoVersion")
 	}
-
-	repositories {
-		mavenCentral()
-	}
 }
 
 configure(rootProject) {
+	task sourcesJar(type: Jar) {
+		archiveClassifier.set('sources')
+		from sourceSets.main.allSource
+	}
+
+	task javadocJar(type: Jar) {
+		archiveClassifier.set('javadoc')
+		from javadoc.destinationDir
+	}
+
 	task api(type: Javadoc) {
 		group = "Documentation"
 		description = "Generates aggregated Javadoc API documentation."
 		title = "${rootProject.description} ${version} API"
 
 		options.encoding = 'UTF-8'
-		options.memberLevel = org.gradle.external.javadoc.JavadocMemberLevel.PROTECTED
+		options.memberLevel = JavadocMemberLevel.PROTECTED
 		options.author = true
 		options.header = rootProject.description
 		options.links(project.ext.javadocLinks)
@@ -184,8 +171,8 @@ configure(rootProject) {
 
 	task docsZip(type: Zip, dependsOn: [':spring-credhub-docs:asciidoctor']) {
 		group = 'Distribution'
-		classifier = 'docs'
-		description = "Builds -${classifier} archive containing api and reference " +
+		archiveClassifier.set('docs')
+		description = "Builds -${archiveClassifier} archive containing api and reference " +
 				"for deployment at docs.spring.io/spring-credhub/docs."
 
 		from(api) {
@@ -199,6 +186,16 @@ configure(rootProject) {
 	artifacts {
 		archives docsZip
 	}
+	
+	publishing {
+		publications {
+			mavenJava(MavenPublication) {
+				artifact sourcesJar
+				artifact javadocJar
+				artifact docsZip
+			}
+		}
+	}
 
 	task dist(dependsOn: assemble) {
 		group = "Distribution"
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 28861d2..5c2d1cf 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index f4d7b2b..3ab0b72 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.9.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
index cccdd3d..b0d6d0a 100755
--- a/gradlew
+++ b/gradlew
@@ -1,5 +1,21 @@
 #!/usr/bin/env sh
 
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
 ##############################################################################
 ##
 ##  Gradle start up script for UN*X
@@ -28,7 +44,7 @@ APP_NAME="Gradle"
 APP_BASE_NAME=`basename "$0"`
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"
diff --git a/gradlew.bat b/gradlew.bat
index f955316..9991c50 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -1,3 +1,19 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      http://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
 @if "%DEBUG%" == "" @echo off
 @rem ##########################################################################
 @rem
@@ -14,7 +30,7 @@ set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
 
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome
diff --git a/publish-maven.gradle b/publish-maven.gradle
index b93cacd..3c449da 100644
--- a/publish-maven.gradle
+++ b/publish-maven.gradle
@@ -24,6 +24,7 @@ publishing {
 	}
 	publications {
 		mavenJava(MavenPublication) {
+			suppressAllPomMetadataWarnings()
 			from components.java
 			pom {
 				afterEvaluate {
@@ -32,7 +33,7 @@ publishing {
 				}
 				url = "https://spring.io/projects/spring-credhub"
 				organization {
-					name = "Spring IO"
+					name = "VMware, Inc."
 					url = "https://spring.io"
 				}
 				licenses {
@@ -59,6 +60,20 @@ publishing {
 					}
 				}
 			}
+
+			// Published pom will use fully-qualified dependency versions and no BOMs
+			versionMapping {
+				usage('java-api') {
+					fromResolutionOf('runtimeClasspath')
+				}
+				usage('java-runtime') {
+					fromResolutionResult()
+				}
+			}
+			pom.withXml {
+				def dependencyManagementNode = asNode().get("dependencyManagement")
+				asNode().remove(dependencyManagementNode)
+			}
 		}
 	}
 }
diff --git a/settings.gradle b/settings.gradle
index 74450a5..16918a2 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -14,6 +14,24 @@
  * limitations under the License.
  */
 
+pluginManagement {
+	repositories {
+		gradlePluginPortal()
+		mavenCentral()
+		maven { url "https://repo.spring.io/plugins-release" }
+		if (version.endsWith('-SNAPSHOT')) {
+			maven { url "https://repo.spring.io/plugins-snapshot" }
+		}
+	}
+	resolutionStrategy {
+		eachPlugin {
+			if (requested.id.id == "io.spring.javaformat") {
+				useModule "io.spring.javaformat:spring-javaformat-gradle-plugin:${requested.version}"
+			}
+		}
+	}
+}
+
 rootProject.name = 'spring-credhub'
 
 include ':spring-credhub-core'
diff --git a/spring-credhub-core/build.gradle b/spring-credhub-core/build.gradle
index 7eaaa65..b34d833 100644
--- a/spring-credhub-core/build.gradle
+++ b/spring-credhub-core/build.gradle
@@ -31,19 +31,21 @@ dependencies {
 	compile("org.springframework:spring-web")
 	compile("com.fasterxml.jackson.core:jackson-databind:2.9.7")
 
-	optional("org.springframework:spring-webflux")
-	optional("io.projectreactor.netty:reactor-netty")
+	reactiveImplementation("org.springframework:spring-webflux")
+	reactiveImplementation("io.projectreactor.netty:reactor-netty")
 
 	compile("org.springframework.security:spring-security-oauth2-client") {
 		exclude module: "spring-security-web"
 	}
-	optional("org.springframework.security:spring-security-config")
+	securityImplementation("org.springframework.security:spring-security-config")
 
-	optional("org.apache.httpcomponents:httpclient:${httpClientVersion}") {
+	httpclientImplementation("org.apache.httpcomponents:httpclient:${httpClientVersion}") {
 		exclude(group: 'commons-logging', module: 'commons-logging')
 	}
-	optional("com.squareup.okhttp3:okhttp:${okHttp3Version}")
-	optional("io.netty:netty-all:${nettyVersion}")
+
+	okhttpImplementation("com.squareup.okhttp3:okhttp:${okHttp3Version}")
+
+	nettyImplementation("io.netty:netty-all:${nettyVersion}")
 
 	testImplementation("org.springframework:spring-test")
 	testImplementation("io.projectreactor:reactor-test")
diff --git a/spring-credhub-docs/build.gradle b/spring-credhub-docs/build.gradle
index 9cbe76a..5394ff7 100644
--- a/spring-credhub-docs/build.gradle
+++ b/spring-credhub-docs/build.gradle
@@ -15,7 +15,7 @@
  */
 
 plugins {
-	id 'org.asciidoctor.convert'
+	id 'org.asciidoctor.jvm.convert' version '3.2.0'
 }
 
 dependencyManagement {
@@ -27,13 +27,6 @@ dependencyManagement {
 
 description = "Spring CredHub Documentation"
 
-apply plugin: 'org.asciidoctor.convert'
-
-repositories {
-	maven { url "https://repo.spring.io/libs-release-local" }
-	mavenCentral()
-}
-
 configurations {
 	docs
 }
@@ -43,7 +36,7 @@ dependencies {
 	compile("io.projectreactor:reactor-core")
 	compile("org.springframework.boot:spring-boot-autoconfigure")
 
-	docs("io.spring.docresources:spring-doc-resources:0.1.2.RELEASE@zip")
+	docs("io.spring.docresources:spring-doc-resources:0.2.5@zip")
 }
 
 task prepareAsciidocBuild(type: Sync) {
@@ -59,6 +52,7 @@ task prepareAsciidocBuild(type: Sync) {
 }
 
 asciidoctor {
+	baseDirFollowsSourceFile()
 	sourceDir = file("$buildDir/asciidoc")
 	sources {
 		include '*.adoc'
@@ -69,7 +63,7 @@ asciidoctor {
 		}
 	}
 	logDocuments = true
-	backends = ["html5"]
+//	backends = ["html5"]
 	options doctype: 'book', eruby: 'erubis'
 	attributes  'icons': 'font',
 			'idprefix': '',
@@ -77,7 +71,7 @@ asciidoctor {
 			docinfo: 'shared',
 			revnumber: project.version,
 			'spring-version': project.version,
-			'branch-or-tag': project.version.endsWith('SNAPSHOT') ? 'master' : "v${project.version}",
+			'branch-or-tag': project.version.endsWith('SNAPSHOT') ? 'main' : "v${project.version}",
 			sectanchors: '',
 			sectnums: '',
 			stylesdir: "css/",
diff --git a/spring-credhub-integration-tests/build.gradle b/spring-credhub-integration-tests/build.gradle
index 5c5ea6a..71b3a33 100644
--- a/spring-credhub-integration-tests/build.gradle
+++ b/spring-credhub-integration-tests/build.gradle
@@ -18,8 +18,6 @@ description = 'Spring CredHub Integration Tests'
 
 buildscript {
 	dependencies {
-		classpath 'io.spring.gradle:propdeps-plugin:0.0.10.RELEASE'
-		classpath 'io.spring.gradle:spring-io-plugin:0.0.8.RELEASE'
 		classpath "org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}"
 	}
 
@@ -30,13 +28,7 @@ buildscript {
 }
 
 apply plugin: 'java'
-apply plugin: 'maven'
 apply plugin: 'eclipse'
-
-apply plugin: 'propdeps'
-apply plugin: 'propdeps-maven'
-apply plugin: 'propdeps-idea'
-apply plugin: 'propdeps-eclipse'
 apply plugin: 'org.springframework.boot'
 
 dependencies {
diff --git a/spring-credhub-reactive-integration-tests/build.gradle b/spring-credhub-reactive-integration-tests/build.gradle
index b87289b..ab1e93f 100644
--- a/spring-credhub-reactive-integration-tests/build.gradle
+++ b/spring-credhub-reactive-integration-tests/build.gradle
@@ -18,8 +18,6 @@ description = 'Spring CredHub Reactive Integration Tests'
 
 buildscript {
 	dependencies {
-		classpath 'io.spring.gradle:propdeps-plugin:0.0.10.RELEASE'
-		classpath 'io.spring.gradle:spring-io-plugin:0.0.8.RELEASE'
 		classpath "org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}"
 	}
 
@@ -30,13 +28,7 @@ buildscript {
 }
 
 apply plugin: 'java'
-apply plugin: 'maven'
 apply plugin: 'eclipse'
-
-apply plugin: 'propdeps'
-apply plugin: 'propdeps-maven'
-apply plugin: 'propdeps-idea'
-apply plugin: 'propdeps-eclipse'
 apply plugin: 'org.springframework.boot'
 
 dependencies {
diff --git a/spring-credhub-starter/build.gradle b/spring-credhub-starter/build.gradle
index 80414c8..4944ba0 100644
--- a/spring-credhub-starter/build.gradle
+++ b/spring-credhub-starter/build.gradle
@@ -26,19 +26,20 @@ dependencies {
 	compile project(':spring-credhub-core')
 	compile("org.springframework.boot:spring-boot-autoconfigure")
 
-	optional("org.springframework.boot:spring-boot-starter-webflux")
+	reactiveImplementation("org.springframework.boot:spring-boot-starter-webflux")
 
-	optional("org.springframework.security:spring-security-config")
-	optional("org.springframework.security:spring-security-oauth2-client")
+	securityImplementation("org.springframework.security:spring-security-config")
+	securityImplementation("org.springframework.security:spring-security-oauth2-client")
 
-	optional("org.apache.httpcomponents:httpclient") {
+	httpclientImplementation("org.apache.httpcomponents:httpclient") {
 		exclude(group: 'commons-logging', module: 'commons-logging')
 	}
-	optional("com.squareup.okhttp3:okhttp:${okHttp3Version}")
-	optional("io.netty:netty-all:${nettyVersion}")
+
+	okhttpImplementation("com.squareup.okhttp3:okhttp:${okHttp3Version}")
+
+	nettyImplementation("io.netty:netty-all:${nettyVersion}")
 
 	annotationProcessor("org.springframework.boot:spring-boot-configuration-processor")
-	annotationProcessor("org.springframework.boot:spring-boot-autoconfigure-processor")
 
 	testImplementation("org.springframework.boot:spring-boot-starter-test")
 	testImplementation("org.springframework.boot:spring-boot-starter-web")
diff --git a/src/nohttp/allowlist.lines b/src/nohttp/allowlist.lines
new file mode 100644
index 0000000..cdb38d4
--- /dev/null
+++ b/src/nohttp/allowlist.lines
@@ -0,0 +1,2 @@
+// ASLv2 header
+^http://www.apache.org/licenses/LICENSE-2.0.*$
\ No newline at end of file