diff --git a/versions/1.0.0.md b/versions/1.0.0.md
index 505cb1a..8d690df 100644
--- a/versions/1.0.0.md
+++ b/versions/1.0.0.md
@@ -46,10 +46,9 @@ In order to preserve the ability to round-trip between YAML and JSON formats, [[
 - Tags MUST be limited to those allowed by the [JSON Schema ruleset](https://yaml.org/spec/1.2/spec.html#id2803231).
 - Keys used in YAML maps MUST be limited to a scalar string, as defined by the [YAML Failsafe schema ruleset](https://yaml.org/spec/1.2/spec.html#id2802346).
 
-### Relative References in URLs
+### Relative References in URIs
 
-Unless specified otherwise, all properties that are URLs MAY be relative references as defined by [RFC3986](https://tools.ietf.org/html/rfc3986#section-4.2).
-Unless specified otherwise, relative references are resolved using the URL of the referring document.
+Unless specified otherwise, all fields that are URI references MAY be relative references as defined by [RFC3986](https://tools.ietf.org/html/rfc3986#section-4.2).
 
 ### Schema
 
@@ -65,7 +64,7 @@ This is the root object of the [Overlay](#overlay).
 | ---- | :----: | ---- |
 | <a name="overlay-version"></a>overlay | `string` | **REQUIRED**. This string MUST be the [version number](#versions) of the Overlay Specification that the Overlay document uses. The `overlay` field SHOULD be used by tooling to interpret the Overlay document. |
 | <a name="overlay-info"></a>info | [Info Object](#info-object) | **REQUIRED**. Provides metadata about the Overlay. The metadata MAY be used by tooling as required. |
-| <a name="overlay-extends"></a>extends | `string` | URL to the target document (such as an [[OpenAPI]] document) this overlay applies to. This MUST be in the form of a URL. |
+| <a name="overlay-extends"></a>extends | `string` | URI reference that identifies the target document (such as an [[OpenAPI]] document) this overlay applies to. |
 | <a name="overlay-actions"></a>actions | [[Action Object](#action-object)] | **REQUIRED** An ordered list of actions to be applied to the target document. The array MUST contain at least one value. |
 
 This object MAY be extended with [Specification Extensions](#specification-extensions).
@@ -74,7 +73,7 @@ The list of actions MUST be applied in sequential order to ensure a consistent o
 
 The `extends` property can be used to indicate that the Overlay was designed to update a specific [[OpenAPI]] document. Where no `extends` is provided it is the responsibility of tooling to apply the Overlay document to the appropriate OpenAPI document(s).
 
-In the following example the `extends` property specifies that the overlay is designed to update the OpenAPI Tic Tac Toe example document using an absolute URL.
+In the following example the `extends` property specifies that the overlay is designed to update the OpenAPI Tic Tac Toe example document, identified by an absolute URI.
 
 ```yaml
 overlay: 1.0.0
@@ -85,7 +84,7 @@ extends: 'https://raw.githubusercontent.com/OAI/learn.openapis.org/refs/heads/ma
 ...
 ```
 
-The `extends` property can also specify a relative URL. In this case, the URL is resolved relative to the location of the Overlay document.
+The `extends` property can also specify a relative URI reference.
 
 ```yaml
 overlay: 1.0.0