diff --git a/COMPONENT_INDEX.md b/COMPONENT_INDEX.md
index c842cb44..192fffe4 100644
--- a/COMPONENT_INDEX.md
+++ b/COMPONENT_INDEX.md
@@ -563,14 +563,16 @@ None.
 
 ### Events
 
-| Event name   | Type       | Detail |
-| :----------- | :--------- | :----- |
-| click        | forwarded  | --     |
-| mouseover    | forwarded  | --     |
-| mouseenter   | forwarded  | --     |
-| mouseleave   | forwarded  | --     |
-| animationend | forwarded  | --     |
-| copy         | dispatched | --     |
+| Event name   | Type       | Detail            |
+| :----------- | :--------- | :---------------- |
+| expand       | dispatched | <code>null</code> |
+| collapse     | dispatched | <code>null</code> |
+| click        | forwarded  | --                |
+| mouseover    | forwarded  | --                |
+| mouseenter   | forwarded  | --                |
+| mouseleave   | forwarded  | --                |
+| animationend | forwarded  | --                |
+| copy         | dispatched | --                |
 
 ## `CodeSnippetSkeleton`
 
diff --git a/docs/src/COMPONENT_API.json b/docs/src/COMPONENT_API.json
index 7632a17f..6f71b1c1 100644
--- a/docs/src/COMPONENT_API.json
+++ b/docs/src/COMPONENT_API.json
@@ -1158,6 +1158,8 @@
         }
       ],
       "events": [
+        { "type": "dispatched", "name": "expand", "detail": "null" },
+        { "type": "dispatched", "name": "collapse", "detail": "null" },
         {
           "type": "forwarded",
           "name": "click",
diff --git a/types/CodeSnippet/CodeSnippet.svelte.d.ts b/types/CodeSnippet/CodeSnippet.svelte.d.ts
index e80d5353..35f4fa5c 100644
--- a/types/CodeSnippet/CodeSnippet.svelte.d.ts
+++ b/types/CodeSnippet/CodeSnippet.svelte.d.ts
@@ -120,6 +120,8 @@ export interface CodeSnippetProps {
 export default class CodeSnippet extends SvelteComponentTyped<
   CodeSnippetProps,
   {
+    expand: CustomEvent<null>;
+    collapse: CustomEvent<null>;
     click: WindowEventMap["click"];
     mouseover: WindowEventMap["mouseover"];
     mouseenter: WindowEventMap["mouseenter"];