diff --git a/src/ol/layer/Heatmap.js b/src/ol/layer/Heatmap.js
index 5c9066a1eb..5d2fb598c5 100644
--- a/src/ol/layer/Heatmap.js
+++ b/src/ol/layer/Heatmap.js
@@ -33,7 +33,7 @@ import {createCanvasContext2D} from '../dom.js';
  * @property {string|function(import("../Feature.js").default):number} [weight='weight'] The feature
  * attribute to use for the weight or a function that returns a weight from a feature. Weight values
  * should range from 0 to 1 (and values outside will be clamped to that range).
- * @property {import("../source/Vector.js").default} [source] Source.
+ * @property {import("../source/Vector.js").default<import("../geom/Point.js").default>} [source] Point source.
  * @property {Object<string, *>} [properties] Arbitrary observable properties. Can be accessed with `#get()` and `#set()`.
  */
 
diff --git a/src/ol/layer/WebGLPoints.js b/src/ol/layer/WebGLPoints.js
index 009fc769b2..764fa87b91 100644
--- a/src/ol/layer/WebGLPoints.js
+++ b/src/ol/layer/WebGLPoints.js
@@ -7,7 +7,7 @@ import {assign} from '../obj.js';
 import {parseLiteralStyle} from '../webgl/ShaderBuilder.js';
 
 /**
- * @template {import("../source/Vector.js").default} VectorSourceType
+ * @template {import("../source/Vector.js").default<import("../geom/Point.js").default>} VectorSourceType
  * @typedef {Object} Options
  * @property {import('../style/literal.js').LiteralStyle} style Literal style to apply to the layer features.
  * @property {string} [className='ol-layer'] A CSS class name to set to the layer element.
@@ -27,7 +27,7 @@ import {parseLiteralStyle} from '../webgl/ShaderBuilder.js';
  * visible.
  * @property {number} [maxZoom] The maximum view zoom level (inclusive) at which this layer will
  * be visible.
- * @property {VectorSourceType} [source] Source.
+ * @property {VectorSourceType} [source] Point source.
  * @property {boolean} [disableHitDetection=false] Setting this to true will provide a slight performance boost, but will
  * prevent all hit detection on the layer.
  * @property {Object<string, *>} [properties] Arbitrary observable properties. Can be accessed with `#get()` and `#set()`.
@@ -68,7 +68,7 @@ import {parseLiteralStyle} from '../webgl/ShaderBuilder.js';
  * property on the layer object; for example, setting `title: 'My Title'` in the
  * options means that `title` is observable, and has get/set accessors.
  *
- * @template {import("../source/Vector.js").default} VectorSourceType
+ * @template {import("../source/Vector.js").default<import("../geom/Point.js").default>} VectorSourceType
  * @extends {Layer<VectorSourceType, WebGLPointsLayerRenderer>}
  * @fires import("../render/Event.js").RenderEvent
  */