diff --git a/pom.xml b/pom.xml
index 7881e7e..53071bb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -95,7 +95,7 @@ Wisconsin-Madison.</license.copyrightOwners>
 
 		<maven-shade-plugin.version>3.2.4</maven-shade-plugin.version>
 
-		<kotlin-compiler-embeddable.optional>false</kotlin-compiler-embeddable.optional>
+		<shaded-jars.optional>false</shaded-jars.optional>
 		<scijava-maven-plugin.version>2.1.0</scijava-maven-plugin.version>
 	</properties>
 
@@ -118,7 +118,7 @@ Wisconsin-Madison.</license.copyrightOwners>
 			<groupId>org.jetbrains.kotlin</groupId>
 			<artifactId>kotlin-compiler-embeddable</artifactId>
 			<version>${kotlin.version}</version>
-			<optional>${kotlin-compiler-embeddable.optional}</optional>
+			<optional>${shaded-jars.optional}</optional>
 		</dependency>
 		<dependency>
 			<groupId>org.jetbrains.kotlin</groupId>
@@ -129,6 +129,7 @@ Wisconsin-Madison.</license.copyrightOwners>
 			<groupId>org.jetbrains.kotlin</groupId>
 			<artifactId>kotlin-scripting-jsr223</artifactId>
 			<version>${kotlin.version}</version>
+			<optional>${shaded-jars.optional}</optional>
 		</dependency>
 
 		<!-- Test dependencies -->
@@ -137,12 +138,6 @@ Wisconsin-Madison.</license.copyrightOwners>
 			<artifactId>junit</artifactId>
 			<scope>test</scope>
 		</dependency>
-		<dependency>
-			<groupId>org.scijava</groupId>
-			<artifactId>scijava-common</artifactId>
-			<classifier>tests</classifier>
-			<scope>test</scope>
-		</dependency>
 	</dependencies>
 
 	<profiles>
@@ -156,7 +151,7 @@ Wisconsin-Madison.</license.copyrightOwners>
 				</property>
 			</activation>
 			<properties>
-				<kotlin-compiler-embeddable.optional>true</kotlin-compiler-embeddable.optional>
+				<shaded-jars.optional>true</shaded-jars.optional>
 				<scijava.ignoreOptionalDependencies>true</scijava.ignoreOptionalDependencies>
 			</properties>
 			<build>
@@ -176,9 +171,16 @@ Wisconsin-Madison.</license.copyrightOwners>
 										<includes>
 											<include>org.jetbrains.intellij.deps:trove4j</include>
 											<include>org.jetbrains.kotlin:kotlin-compiler-embeddable</include>
-											<include>org.jetbrains.kotlin:kotlin-script-runtime</include>
 											<include>org.jetbrains.kotlin:kotlin-reflect</include>
 											<include>org.jetbrains.kotlin:kotlin-daemon-embeddable</include>
+											<include>org.jetbrains.kotlin:kotlin-script-runtime</include>
+											<include>org.jetbrains.kotlin:kotlin-scripting-jsr223</include>
+											<include>org.jetbrains.kotlin:kotlin-scripting-common</include>
+											<include>org.jetbrains.kotlinx:kotlinx-coroutines-core</include>
+											<include>org.jetbrains.kotlin:kotlin-scripting-jvm</include>
+											<include>org.jetbrains.kotlin:kotlin-scripting-jvm-host</include>
+											<include>org.jetbrains.kotlin:kotlin-scripting-compiler-embeddable</include>
+											<include>org.jetbrains.kotlin:kotlin-scripting-compiler-impl-embeddable</include>
 										</includes>
 									</artifactSet>
 									<relocations>
diff --git a/src/test/kotlin/org/scijava/plugins/scripting/kotlin/KotlinTest.kt b/src/test/kotlin/org/scijava/plugins/scripting/kotlin/KotlinTest.kt
index 08b6c5c..3efb6e5 100644
--- a/src/test/kotlin/org/scijava/plugins/scripting/kotlin/KotlinTest.kt
+++ b/src/test/kotlin/org/scijava/plugins/scripting/kotlin/KotlinTest.kt
@@ -33,26 +33,27 @@ import org.junit.Assert
 import org.junit.BeforeClass
 import org.junit.Test
 import org.scijava.Context
-import org.scijava.script.AbstractScriptLanguageTest
 import org.scijava.script.ScriptLanguage
 import org.scijava.script.ScriptService
 import java.io.IOException
 import java.util.concurrent.ExecutionException
 import javax.script.ScriptContext
 import javax.script.ScriptEngine
+import javax.script.ScriptEngineManager
 import javax.script.ScriptException
 import kotlin.math.E
 
+
 /**
  * Kotlin unit tests.
  *
  * @author Curtis Rueden
  * @author Philipp Hanslovsky
  */
-class KotlinTest : AbstractScriptLanguageTest() {
+class KotlinTest {
 
     @Test
-    fun testDiscovery() = assertDiscovered(KotlinScriptLanguage::class.java)
+    fun testDiscovery() = KotlinScriptLanguage::class.java.assertDiscovered()
 
     @Test
     @Throws(InterruptedException::class, ExecutionException::class, IOException::class, ScriptException::class)
@@ -90,4 +91,11 @@ class KotlinTest : AbstractScriptLanguageTest() {
         private lateinit var _engine: ScriptEngine
         val engine get() = _engine
     }
+}
+
+fun Class<out ScriptLanguage?>.assertDiscovered() {
+    ScriptEngineManager()
+        .engineFactories
+        .firstOrNull { isInstance(it) }
+        ?: Assert.fail("$name not discovered by JSR-223 framework")
 }
\ No newline at end of file