diff --git a/.cspell.json b/.cspell.json
index 04daa40..50421ab 100644
--- a/.cspell.json
+++ b/.cspell.json
@@ -11,6 +11,7 @@
   "language": "en",
   "version": "0.1",
   "words": [
+    "CDPATH",
     "CLASSPATH",
     "CYGWIN",
     "Cygwin",
@@ -40,6 +41,7 @@
     "atlassian",
     "autotools",
     "buildpath",
+    "choe",
     "classpath",
     "cmake",
     "codecov",
@@ -49,6 +51,7 @@
     "cygwin",
     "deps",
     "detekt",
+    "develocity",
     "diffplug",
     "dokka",
     "donotpresent",
@@ -73,6 +76,7 @@
     "ktlint",
     "loadpath",
     "metacharacter",
+    "mojang",
     "mpeltonen",
     "msix",
     "msys",
@@ -88,9 +92,12 @@
     "qodana",
     "readarray",
     "relases",
+    "remapper",
     "replstate",
     "sarif",
     "sbteclipse",
+    "shellcheck",
+    "shellness",
     "shipkit",
     "sonarlint",
     "sonatype",
diff --git a/build.gradle.kts b/build.gradle.kts
index bf5f023..539dd31 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -15,7 +15,7 @@ group = "dev.mythicdrops"
 
 java {
     toolchain {
-        languageVersion.set(JavaLanguageVersion.of(17))
+        languageVersion.set(JavaLanguageVersion.of(21))
     }
     withJavadocJar()
     withSourcesJar()
@@ -100,7 +100,7 @@ gradlePlugin {
 }
 
 ktlint {
-    version.set("1.1.1")
+    version.set("1.3.1")
 }
 
 tasks {
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 7f93135..e644113 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 e7646de..6f7a6eb 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-8.7-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-all.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
diff --git a/gradlew b/gradlew
index 0adc8e1..1aa94a4 100755
--- a/gradlew
+++ b/gradlew
@@ -145,7 +145,7 @@ if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
         # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045
+        # shellcheck disable=SC2039,SC3045
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
@@ -153,7 +153,7 @@ if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
       '' | soft) :;; #(
       *)
         # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045
+        # shellcheck disable=SC2039,SC3045
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -202,11 +202,11 @@ fi
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
-# Collect all arguments for the java command;
-#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
-#     shell script including quotes and variable substitutions, so put them in
-#     double quotes to make sure that they get re-expanded; and
-#   * put everything else in single quotes, so that it's not re-expanded.
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
 
 set -- \
         "-Dorg.gradle.appname=$APP_BASE_NAME" \
diff --git a/gradlew.bat b/gradlew.bat
index 6689b85..7101f8e 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -43,11 +43,11 @@ 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 +57,11 @@ 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
 
diff --git a/settings.gradle.kts b/settings.gradle.kts
index b265405..d242d3e 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -7,7 +7,7 @@ pluginManagement {
 plugins {
     // See https://jmfayard.github.io/refreshVersions
     id("de.fayard.refreshVersions") version "0.60.5"
-    id("com.gradle.develocity") version "3.17.4"
+    id("com.gradle.develocity") version "3.17.5"
 }
 
 develocity {
diff --git a/src/main/kotlin/dev/mythicdrops/gradle/conventions/MythicDropsJavaPlugin.kt b/src/main/kotlin/dev/mythicdrops/gradle/conventions/MythicDropsJavaPlugin.kt
index b55872d..a85fa58 100644
--- a/src/main/kotlin/dev/mythicdrops/gradle/conventions/MythicDropsJavaPlugin.kt
+++ b/src/main/kotlin/dev/mythicdrops/gradle/conventions/MythicDropsJavaPlugin.kt
@@ -10,7 +10,7 @@ import org.gradle.testing.jacoco.plugins.JacocoPlugin
 import org.gradle.testing.jacoco.plugins.JacocoPluginExtension
 import org.gradle.testing.jacoco.tasks.JacocoReport
 
-const val DEFAULT_JAVA_VERSION = 17
+const val DEFAULT_JAVA_VERSION = 21
 
 /**
  * Plugin that configures Java for JDK 17 and enables JaCoCo.
diff --git a/src/main/kotlin/dev/mythicdrops/gradle/conventions/MythicDropsKotlinJvmPlugin.kt b/src/main/kotlin/dev/mythicdrops/gradle/conventions/MythicDropsKotlinJvmPlugin.kt
index a0a841b..5b46650 100644
--- a/src/main/kotlin/dev/mythicdrops/gradle/conventions/MythicDropsKotlinJvmPlugin.kt
+++ b/src/main/kotlin/dev/mythicdrops/gradle/conventions/MythicDropsKotlinJvmPlugin.kt
@@ -24,7 +24,7 @@ open class MythicDropsKotlinJvmPlugin : DependentPlugin("Kotlin JVM", "org.jetbr
 
         // exclude files from the build directory from being linted or formatted
         target.configure<KtlintExtension> {
-            version.set("1.2.1")
+            version.set("1.3.1")
             filter {
                 exclude { entry ->
                     entry.file.toString().contains("generated")
diff --git a/src/main/kotlin/dev/mythicdrops/gradle/conventions/MythicDropsMavenPublishPlugin.kt b/src/main/kotlin/dev/mythicdrops/gradle/conventions/MythicDropsMavenPublishPlugin.kt
index a380933..1dd39aa 100644
--- a/src/main/kotlin/dev/mythicdrops/gradle/conventions/MythicDropsMavenPublishPlugin.kt
+++ b/src/main/kotlin/dev/mythicdrops/gradle/conventions/MythicDropsMavenPublishPlugin.kt
@@ -41,7 +41,12 @@ open class MythicDropsMavenPublishPlugin : DependentPlugin("Maven Publish", "mav
             // Uses ASCII-armored keys (typically provided on GitHub Actions)
             useInMemoryPgpKeys(signingParams.pgpKey, signingParams.pgpPwd)
             // Always sign Maven publications in case they go to Maven Central
-            sign(target.extensions.getByType<PublishingExtension>().publications.matching { it is MavenPublication })
+            sign(
+                target.extensions
+                    .getByType<PublishingExtension>()
+                    .publications
+                    .matching { it is MavenPublication },
+            )
         }
     }
 
@@ -57,7 +62,9 @@ open class MythicDropsMavenPublishPlugin : DependentPlugin("Maven Publish", "mav
                 val deps =
                     root.children().find {
                         it is groovy.util.Node &&
-                            it.name().toString()
+                            it
+                                .name()
+                                .toString()
                                 .endsWith("dependencies")
                     } as groovy.util.Node? ?: root.appendNode("dependencies")
                 dependencies.forEach { dependency ->
diff --git a/src/main/kotlin/dev/mythicdrops/gradle/spigot/RunSpigotBuildToolsTask.kt b/src/main/kotlin/dev/mythicdrops/gradle/spigot/RunSpigotBuildToolsTask.kt
index 25b3dd7..cc2127a 100644
--- a/src/main/kotlin/dev/mythicdrops/gradle/spigot/RunSpigotBuildToolsTask.kt
+++ b/src/main/kotlin/dev/mythicdrops/gradle/spigot/RunSpigotBuildToolsTask.kt
@@ -66,59 +66,41 @@ abstract class RunSpigotBuildToolsTask : DefaultTask() {
             mavenLocalDirectory.mkdirs()
         }
 
-        normalVersion(mavenLocalDirectory, version)
+        javaexecSpigotBuildTools(mavenLocalDirectory, version, false)
         if (includeRemapped.getOrElse(false)) {
-            remappedVersion(mavenLocalDirectory, version)
+            javaexecSpigotBuildTools(mavenLocalDirectory, version, true)
         }
     }
 
-    private fun normalVersion(
+    private fun javaexecSpigotBuildTools(
         mavenLocalDirectory: File,
         version: String,
+        isRemapped: Boolean,
     ) {
         val versionJar =
-            mavenLocalDirectory.resolve(
-                "org/spigotmc/spigot/$version-R0.1-SNAPSHOT/spigot-$version-R0.1-SNAPSHOT.jar",
-            )
-        if (versionJar.exists()) {
-            logger.lifecycle("Skipping $version as Spigot JAR is found at ${versionJar.absolutePath}")
-            return
-        }
-        val jar = buildToolsLocation.get().asFile
-        val versionDir = jar.parentFile.resolve(version)
-        fileSystemOperations.copy {
-            from(jar)
-            into(versionDir)
-        }
-        execOperations.javaexec {
-            args(listOf("--rev", version))
-            workingDir = versionDir.absoluteFile
-            jvmArgs = listOf("-Xmx1024M")
-            classpath(buildToolsLocation)
-            executable(launcher.get().executablePath)
-        }
-    }
+            if (isRemapped) {
+                mavenLocalDirectory.resolve(
+                    "org/spigotmc/spigot/$version-R0.1-SNAPSHOT/spigot-$version-R0.1-SNAPSHOT-remapped-mojang.jar",
+                )
+            } else {
+                mavenLocalDirectory.resolve(
+                    "org/spigotmc/spigot/$version-R0.1-SNAPSHOT/spigot-$version-R0.1-SNAPSHOT.jar",
+                )
+            }
 
-    private fun remappedVersion(
-        mavenLocalDirectory: File,
-        version: String,
-    ) {
-        val versionJar =
-            mavenLocalDirectory.resolve(
-                "org/spigotmc/spigot/$version-R0.1-SNAPSHOT/spigot-$version-R0.1-SNAPSHOT-remapped-mojang.jar",
-            )
         if (versionJar.exists()) {
-            logger.lifecycle("Skipping $version as Spigot remapped JAR is found at ${versionJar.absolutePath}")
+            logger.lifecycle("Skipping $version as Spigot JAR is found at ${versionJar.absolutePath}")
             return
         }
         val jar = buildToolsLocation.get().asFile
         val versionDir = jar.parentFile.resolve(version)
+        val args = listOfNotNull("--rev", version, if (isRemapped) "--remapped" else null)
         fileSystemOperations.copy {
             from(jar)
             into(versionDir)
         }
         execOperations.javaexec {
-            args(listOf("--rev", version, "--remapped"))
+            args(args)
             workingDir = versionDir.absoluteFile
             jvmArgs = listOf("-Xmx1024M")
             classpath(buildToolsLocation)
diff --git a/version.properties b/version.properties
index 80f95e5..368eae2 100644
--- a/version.properties
+++ b/version.properties
@@ -1 +1 @@
-version=8.0.*
+version=9.0.*
diff --git a/versions.properties b/versions.properties
index 302c49d..1c6a29f 100644
--- a/versions.properties
+++ b/versions.properties
@@ -15,7 +15,7 @@ plugin.org.jetbrains.dokka=1.9.20
 
 plugin.org.jlleitschuh.gradle.ktlint=12.1.1
 
-plugin.org.shipkit.shipkit-auto-version=2.0.7
+plugin.org.shipkit.shipkit-auto-version=2.0.9
 
 plugin.org.shipkit.shipkit-changelog=2.0.1
 
@@ -23,7 +23,7 @@ plugin.org.shipkit.shipkit-github-release=2.0.1
 
 plugin.com.adarshr.test-logger=4.0.0
 
-version.org.shipkit..shipkit-auto-version=2.0.7
+version.org.shipkit..shipkit-auto-version=2.0.9
 
 version.org.shipkit..shipkit-changelog=2.0.1
 
@@ -41,6 +41,6 @@ version.org.jlleitschuh.gradle..ktlint-gradle=12.1.1
 
 version.io.github.gradle-nexus..publish-plugin=2.0.0
 
-version.org.kohsuke..github-api=1.321
+version.org.kohsuke..github-api=1.323
 
 version.io.github.patrick-choe..mojang-spigot-remapper=1.4.2