diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index dc1402b62..c807301c9 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,6 +1,6 @@
 [versions]
 kotlin = "1.9.24"
-asm = "9.6"
+asm = "9.7.1"
 commons-io = "2.15.1"
 gson = "2.10.1"
 guava = "33.0.0-jre"
diff --git a/gradle/test.libs.versions.toml b/gradle/test.libs.versions.toml
index c3c92e8bf..2b091d911 100644
--- a/gradle/test.libs.versions.toml
+++ b/gradle/test.libs.versions.toml
@@ -6,7 +6,7 @@ mockito = "5.13.0"
 java-debug = "0.52.0"
 mixin = "0.15.3+mixin.0.8.7"
 
-gradle-nightly = "8.11-20240926001708+0000"
+gradle-nightly = "8.12-20241009055624+0000"
 fabric-loader = "0.16.5"
 fabric-installer = "1.0.1"
 
diff --git a/src/main/java/net/fabricmc/loom/util/gradle/WorkerDaemonClientsManagerHelper.java b/src/main/java/net/fabricmc/loom/util/gradle/WorkerDaemonClientsManagerHelper.java
index d51f79206..07d2f0375 100644
--- a/src/main/java/net/fabricmc/loom/util/gradle/WorkerDaemonClientsManagerHelper.java
+++ b/src/main/java/net/fabricmc/loom/util/gradle/WorkerDaemonClientsManagerHelper.java
@@ -32,6 +32,7 @@
 import java.util.concurrent.atomic.AtomicBoolean;
 
 import org.gradle.api.Transformer;
+import org.gradle.process.internal.JvmOptions;
 import org.gradle.workers.internal.DaemonForkOptions;
 import org.gradle.workers.internal.WorkerDaemonClientsManager;
 
@@ -45,7 +46,7 @@ public static boolean stopIdleJVM(WorkerDaemonClientsManager manager, String jvm
 		Transformer<List<Object>, List<Object>> transformer = workerDaemonClients -> {
 			for (Object /* WorkerDaemonClient */ client : workerDaemonClients) {
 				DaemonForkOptions forkOptions = getForkOptions(client);
-				Map<String, Object> systemProperties = forkOptions.getJavaForkOptions().getSystemProperties();
+				Map<String, Object> systemProperties = getSystemProperties(forkOptions);
 
 				if (systemProperties == null || !jvmMarkerValue.equals(systemProperties.get(MARKER_PROP))) {
 					// Not the JVM we are looking for
@@ -70,6 +71,30 @@ public static boolean stopIdleJVM(WorkerDaemonClientsManager manager, String jvm
 		return stopped.get();
 	}
 
+	private static Map<String, Object> getSystemProperties(DaemonForkOptions forkOptions) {
+		try {
+			Method getJavaForkOptionsMethod = forkOptions.getClass().getDeclaredMethod("getJavaForkOptions");
+			getJavaForkOptionsMethod.setAccessible(true);
+			Object /* JavaForkOptions */ javaForkOptions = getJavaForkOptionsMethod.invoke(forkOptions);
+			Method getSystemPropertiesMethod = javaForkOptions.getClass().getDeclaredMethod("getSystemProperties");
+			getSystemPropertiesMethod.setAccessible(true);
+			//noinspection unchecked
+			return (Map<String, Object>) getSystemPropertiesMethod.invoke(javaForkOptions);
+		} catch (NoSuchMethodException | InvocationTargetException | IllegalAccessException e) {
+			// Gradle 8.11 and below
+		}
+
+		// Gradle 8.12+
+		try {
+			Method getJvmOptions = forkOptions.getClass().getDeclaredMethod("getJvmOptions");
+			getJvmOptions.setAccessible(true);
+			JvmOptions jvmOptions = (JvmOptions) getJvmOptions.invoke(forkOptions);
+			return jvmOptions.getMutableSystemProperties();
+		} catch (NoSuchMethodException | InvocationTargetException | IllegalAccessException e) {
+			throw new RuntimeException("Failed to daemon system properties", e);
+		}
+	}
+
 	private static DaemonForkOptions getForkOptions(Object /* WorkerDaemonClient */ client) {
 		try {
 			Method getForkOptionsMethod = client.getClass().getDeclaredMethod("getForkOptions");