diff --git a/extras/EsotericSoftwareSpine/CMakeLists.txt b/extras/EsotericSoftwareSpine/CMakeLists.txt
index c341cdd..2c32021 100644
--- a/extras/EsotericSoftwareSpine/CMakeLists.txt
+++ b/extras/EsotericSoftwareSpine/CMakeLists.txt
@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.2)
 
 add_custom_target(
 	rhubarbForSpine ALL
-	"./gradlew" "shadowJar"
+	"./gradlew" "build"
 	WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
 	COMMENT "Building Rhubarb for Spine through Gradle."
 )
diff --git a/extras/EsotericSoftwareSpine/build.gradle.kts b/extras/EsotericSoftwareSpine/build.gradle.kts
index 97a95f1..64dda69 100644
--- a/extras/EsotericSoftwareSpine/build.gradle.kts
+++ b/extras/EsotericSoftwareSpine/build.gradle.kts
@@ -1,10 +1,8 @@
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 import java.io.File
-import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
 
 plugins {
 	kotlin("jvm") version "1.3.41"
-	id("com.github.johnrengelman.shadow") version "5.1.0"
 }
 
 fun getVersion(): String {
@@ -43,13 +41,10 @@ tasks.test {
 	useJUnitPlatform()
 }
 
-tasks.shadowJar {
-	dependsOn(tasks.test)
-
-	// Modified by shadow plugin
-	archiveClassifier.set(null as String?)
-
+tasks.withType<Jar> {
 	manifest {
 		attributes("Main-Class" to "com.rhubarb_lip_sync.rhubarb_for_spine.MainKt")
 	}
+
+	from(configurations.compileClasspath.get().map { if (it.isDirectory) it else zipTree(it) })
 }