Updated builds.

build/three.js

@@ -40515,6 +40515,8 @@
 
 		return function update() {
 
+			this.light.updateMatrixWorld();
+
 			var coneLength = this.light.distance ? this.light.distance : 1000;
 			var coneWidth = coneLength * Math.tan( this.light.angle );
 

build/three.module.js

@@ -40509,6 +40509,8 @@ SpotLightHelper.prototype.update = function () {
 
 	return function update() {
 
+		this.light.updateMatrixWorld();
+
 		var coneLength = this.light.distance ? this.light.distance : 1000;
 		var coneWidth = coneLength * Math.tan( this.light.angle );