diff --git a/CHANGELOG.adoc b/CHANGELOG.adoc
index 129a7204..8d5cf44c 100644
--- a/CHANGELOG.adoc
+++ b/CHANGELOG.adoc
@@ -13,6 +13,12 @@ For a detailed view of what has changed, refer to the {url-repo}/commits/main[co
 
 == Unreleased
 
+Build Improvement::
+
+* Move to new plugin suite org.ysb33r.jruby for installing ruby gems (#1293)
+* Upgrade build to Gradle 8.12 (#1293)
+
+
 == 3.0.0 (2024-08-25)
 
 Build Improvement::
diff --git a/asciidoctorj-core/build.gradle b/asciidoctorj-core/build.gradle
index ed1403e8..6717275d 100644
--- a/asciidoctorj-core/build.gradle
+++ b/asciidoctorj-core/build.gradle
@@ -1,7 +1,10 @@
 apply plugin: 'java-library'
 apply plugin: 'groovy'
 apply plugin: 'biz.aQute.bnd.builder'
-apply plugin: 'com.github.jruby-gradle.base'
+apply plugin: 'org.ysb33r.jruby.base'
+apply plugin: 'org.ysb33r.jruby.resolver'
+
+import org.ysb33r.gradle.jruby.api.base.tasks.JRubyPrepare
 
 project.ext.publicationName = "mavenAsciidoctorJ"
 
@@ -12,21 +15,27 @@ repositories {
   ruby.gems()
 }
 
+configurations {
+  runtimeGems {
+    canBeResolved(true)
+  }
+}
+
 dependencies {
   api project(':asciidoctorj-api')
   api "org.jruby:jruby:$jrubyVersion"
 
-  gems "rubygems:asciidoctor:$asciidoctorGemVersion"
-  gems "rubygems:asciimath:$asciimathGemVersion"
-  gems "rubygems:coderay:$coderayGemVersion"
-  gems "rubygems:rouge:$rougeGemVersion"
-  gems "rubygems:erubis:$erubisGemVersion"
-  gems "rubygems:haml:$hamlGemVersion"
-  gems "rubygems:open-uri-cached:$openUriCachedGemVersion"
-  gems "rubygems:slim:$slimGemVersion"
-  gems "rubygems:thread_safe:$threadSafeGemVersion"
-  gems "rubygems:tilt:$tiltGemVersion"
-  gems "rubygems:concurrent-ruby:$concurrentRubyGemVersion"
+  runtimeGems "rubygems:asciidoctor:$asciidoctorGemVersion"
+  runtimeGems "rubygems:asciimath:$asciimathGemVersion"
+  runtimeGems "rubygems:coderay:$coderayGemVersion"
+  runtimeGems "rubygems:rouge:$rougeGemVersion"
+  runtimeGems "rubygems:erubis:$erubisGemVersion"
+  runtimeGems "rubygems:haml:$hamlGemVersion"
+  runtimeGems "rubygems:open-uri-cached:$openUriCachedGemVersion"
+  runtimeGems "rubygems:slim:$slimGemVersion"
+  runtimeGems "rubygems:thread_safe:$threadSafeGemVersion"
+  runtimeGems "rubygems:tilt:$tiltGemVersion"
+  runtimeGems "rubygems:concurrent-ruby:$concurrentRubyGemVersion"
   // TODO could use dependency replacement feature to fix version of Saxon-HE
   testImplementation("org.xmlmatchers:xml-matchers:$xmlMatchersVersion") { exclude module: 'Saxon-HE' }
   testImplementation "net.sf.saxon:Saxon-HE:$saxonVersion"
@@ -45,7 +54,8 @@ def gemFiles = fileTree("${project.buildDir}/.gems") {
 
 apply from: rootProject.file('gradle/versioncheck.gradle')
 
-jrubyPrepare {
+tasks.named('gemPrepare', JRubyPrepare) {
+  gemConfiguration = configurations.runtimeGems
   doLast {
     copy { // bundles the gems inside this artifact
       from gemFiles
@@ -53,14 +63,8 @@ jrubyPrepare {
     }
   }
 }
-tasks.eclipse.dependsOn jrubyPrepare
-
+tasks.eclipse.dependsOn gemPrepare
 
-jruby {
-  defaultRepositories = false
-  jrubyVersion = jrubyVersion
-  // TODO I'd like to be able to customize the name of the gemInstallDir
-}
 
 ext {
   // path to use for the prepared jruby gems
@@ -70,14 +74,14 @@ ext {
 sourceSets {
   main {
     //let's register an output folder on the main SourceSet:
-    output.dir(preparedGems, builtBy: 'jrubyPrepare')
+    output.dir(preparedGems, builtBy: 'gemPrepare')
     //it is now a part of the 'main' classpath and will be a part of the jar
   }
 }
 
 // QUESTION is this the right place to insert this task dependency in the lifecycle?
 // IMPORTANT The TMP or TEMP environment variable must be set for the gem install command to work on Windows
-processResources.dependsOn jrubyPrepare
+processResources.dependsOn gemPrepare
 
 
 javadoc {
diff --git a/asciidoctorj-wildfly-integration-test/build.gradle b/asciidoctorj-wildfly-integration-test/build.gradle
index 97e27f0a..183c3bc5 100644
--- a/asciidoctorj-wildfly-integration-test/build.gradle
+++ b/asciidoctorj-wildfly-integration-test/build.gradle
@@ -63,7 +63,7 @@ task createModuleDescriptor(type: Copy) {
     into "build/modules/org/asciidoctor/asciidoctorj/main"
     filter {
         it
-                .replaceAll('@@version@@', project(':asciidoctorj').version)
+                .replaceAll('@@version@@', project.version)
                 .replaceAll('@@jrubyVersion@@', jrubyVersion)
     }
 }
diff --git a/build.gradle b/build.gradle
index beafe2f8..56300f17 100644
--- a/build.gradle
+++ b/build.gradle
@@ -18,16 +18,14 @@ buildscript {
     }
     dependencies {
         classpath "biz.aQute.bnd:biz.aQute.bnd.gradle:5.3.0"
-        classpath("com.github.jruby-gradle:jruby-gradle-plugin:2.0.1") {
-          exclude module: 'grolifant'
-          exclude module: 'okhttp-digest'
-        }
-        classpath 'org.ysb33r.gradle:grolifant:0.17.0'
     }
 }
 
 // modern plugins config
 plugins {
+  id 'org.ysb33r.jruby.resolver'    version '2.0.0'
+  id 'org.ysb33r.jruby.base' version '2.0.0'
+
   id "io.sdkman.vendors" version "3.0.0"
   id "signing"
   id "io.github.gradle-nexus.publish-plugin" version "1.3.0"
diff --git a/gradle.properties b/gradle.properties
index 837e566f..8886d080 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,2 +1,2 @@
-version=3.0.0
+version=3.0.1-SNAPSHOT
 org.gradle.jvmargs=-XX:MaxMetaspaceSize=512m
diff --git a/gradle/sdkman.gradle b/gradle/sdkman.gradle
index af8baeed..436ce822 100644
--- a/gradle/sdkman.gradle
+++ b/gradle/sdkman.gradle
@@ -4,7 +4,7 @@ sdkman {
     consumerKey = project.sdkman_consumer_key
     consumerToken = project.sdkman_consumer_token
     candidate = rootProject.name
-    version = rootProject.version
+    version = project.version
     hashtag = "#asciidoctorj"
     url = "https://repo1.maven.org/maven2/org/asciidoctor/asciidoctorj/${rootProject.version}/asciidoctorj-${rootProject.version}-bin.zip"
 }
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index d64cd491..a4b76b95 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 1af9e093..cea7a793 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.12-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
diff --git a/gradlew b/gradlew
index 1aa94a42..f3b75f3b 100755
--- a/gradlew
+++ b/gradlew
@@ -15,6 +15,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 
 ##############################################################################
 #
@@ -55,7 +57,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -84,7 +86,7 @@ done
 # shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
 # Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
-APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
 
 # 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 6689b85b..9b42019c 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -13,6 +13,8 @@
 @rem See the License for the specific language governing permissions and
 @rem limitations under the License.
 @rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
 
 @if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
@@ -43,11 +45,11 @@ set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
 if %ERRORLEVEL% equ 0 goto execute
 
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 
@@ -57,11 +59,11 @@ set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
 if exist "%JAVA_EXE%" goto execute
 
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail