diff --git a/COMPONENT_INDEX.md b/COMPONENT_INDEX.md
index adc03c2d6e..5fb179c80c 100644
--- a/COMPONENT_INDEX.md
+++ b/COMPONENT_INDEX.md
@@ -662,7 +662,7 @@ export interface ComboBoxItem {
 | items                    | No       | <code>let</code>      | No       | <code>ReadonlyArray<ComboBoxItem></code>                                                              | <code>[]</code>                                                                                                                                                                                                         | Set the combobox items                                                                                                                                      |
 | itemToString             | No       | <code>let</code>      | No       | <code>(item: ComboBoxItem) => string</code>                                                           | <code>(item) => item.text &#124;&#124; item.id</code>                                                                                                                                                                   | Override the display of a combobox item                                                                                                                     |
 | direction                | No       | <code>let</code>      | No       | <code>"bottom" &#124; "top"</code>                                                                    | <code>"bottom"</code>                                                                                                                                                                                                   | Specify the direction of the combobox dropdown menu                                                                                                         |
-| size                     | No       | <code>let</code>      | No       | <code>"sm" &#124; "xl"</code>                                                                         | <code>undefined</code>                                                                                                                                                                                                  | Set the size of the combobox                                                                                                                                |
+| size                     | No       | <code>let</code>      | No       | <code>"sm" &#124; "md" &#124; "lg" </code>                                                            | <code>undefined</code>                                                                                                                                                                                                  | Set the size of the combobox                                                                                                                                |
 | disabled                 | No       | <code>let</code>      | No       | <code>boolean</code>                                                                                  | <code>false</code>                                                                                                                                                                                                      | Set to `true` to disable the combobox                                                                                                                       |
 | titleText                | No       | <code>let</code>      | No       | <code>string</code>                                                                                   | <code>""</code>                                                                                                                                                                                                         | Specify the title text of the combobox                                                                                                                      |
 | placeholder              | No       | <code>let</code>      | No       | <code>string</code>                                                                                   | <code>""</code>                                                                                                                                                                                                         | Specify the placeholder text                                                                                                                                |
@@ -1977,17 +1977,17 @@ None.
 
 ### Props
 
-| Prop name   | Required | Kind             | Reactive | Type                                   | Default value          | Description                                |
-| :---------- | :------- | :--------------- | :------- | -------------------------------------- | ---------------------- | ------------------------------------------ |
-| size        | No       | <code>let</code> | No       | <code>"sm" &#124; "xl"</code>          | <code>undefined</code> | Set the size of the list box               |
-| type        | No       | <code>let</code> | No       | <code>"default" &#124; "inline"</code> | <code>"default"</code> | Set the type of the list box               |
-| open        | No       | <code>let</code> | No       | <code>boolean</code>                   | <code>false</code>     | Set to `true` to open the list box         |
-| light       | No       | <code>let</code> | No       | <code>boolean</code>                   | <code>false</code>     | Set to `true` to enable the light variant  |
-| disabled    | No       | <code>let</code> | No       | <code>boolean</code>                   | <code>false</code>     | Set to `true` to disable the list box      |
-| invalid     | No       | <code>let</code> | No       | <code>boolean</code>                   | <code>false</code>     | Set to `true` to indicate an invalid state |
-| invalidText | No       | <code>let</code> | No       | <code>string</code>                    | <code>""</code>        | Specify the invalid state text             |
-| warn        | No       | <code>let</code> | No       | <code>boolean</code>                   | <code>false</code>     | Set to `true` to indicate an warning state |
-| warnText    | No       | <code>let</code> | No       | <code>string</code>                    | <code>""</code>        | Specify the warning state text             |
+| Prop name   | Required | Kind             | Reactive | Type                                       | Default value          | Description                                |
+| :---------- | :------- | :--------------- | :------- | ------------------------------------------ | ---------------------- | ------------------------------------------ |
+| size        | No       | <code>let</code> | No       | <code>"sm" &#124; "md" &#124; "lg" </code> | <code>undefined</code> | Set the size of the list box               |
+| type        | No       | <code>let</code> | No       | <code>"default" &#124; "inline"</code>     | <code>"default"</code> | Set the type of the list box               |
+| open        | No       | <code>let</code> | No       | <code>boolean</code>                       | <code>false</code>     | Set to `true` to open the list box         |
+| light       | No       | <code>let</code> | No       | <code>boolean</code>                       | <code>false</code>     | Set to `true` to enable the light variant  |
+| disabled    | No       | <code>let</code> | No       | <code>boolean</code>                       | <code>false</code>     | Set to `true` to disable the list box      |
+| invalid     | No       | <code>let</code> | No       | <code>boolean</code>                       | <code>false</code>     | Set to `true` to indicate an invalid state |
+| invalidText | No       | <code>let</code> | No       | <code>string</code>                        | <code>""</code>        | Specify the invalid state text             |
+| warn        | No       | <code>let</code> | No       | <code>boolean</code>                       | <code>false</code>     | Set to `true` to indicate an warning state |
+| warnText    | No       | <code>let</code> | No       | <code>string</code>                        | <code>""</code>        | Specify the warning state text             |
 
 ### Slots
 
diff --git a/docs/src/COMPONENT_API.json b/docs/src/COMPONENT_API.json
index e2f993ea0a..7f68303b3c 100644
--- a/docs/src/COMPONENT_API.json
+++ b/docs/src/COMPONENT_API.json
@@ -1515,7 +1515,7 @@
           "name": "size",
           "kind": "let",
           "description": "Set the size of the combobox",
-          "type": "\"sm\" | \"xl\"",
+          "type": "\"sm\" | \"md\" | \"lg\" ",
           "isFunction": false,
           "isFunctionDeclaration": false,
           "isRequired": false,
@@ -5795,7 +5795,7 @@
           "name": "size",
           "kind": "let",
           "description": "Set the size of the list box",
-          "type": "\"sm\" | \"xl\"",
+          "type": "\"sm\" | \"md\" | \"lg\" ",
           "isFunction": false,
           "isFunctionDeclaration": false,
           "isRequired": false,
diff --git a/docs/src/pages/components/ComboBox.svx b/docs/src/pages/components/ComboBox.svx
index 559b4127c1..5089c94ca9 100644
--- a/docs/src/pages/components/ComboBox.svx
+++ b/docs/src/pages/components/ComboBox.svx
@@ -83,7 +83,7 @@ items={[
 ## Extra-large size
 
 <ComboBox titleText="Contact" placeholder="Select contact method"
-size="xl"
+size="lg"
 items={[
   {id: "0", text: "Slack"},
   {id: "1", text: "Email"},
diff --git a/src/ComboBox/ComboBox.svelte b/src/ComboBox/ComboBox.svelte
index 886cc43343..f467fb04ca 100644
--- a/src/ComboBox/ComboBox.svelte
+++ b/src/ComboBox/ComboBox.svelte
@@ -35,7 +35,7 @@
 
   /**
    * Set the size of the combobox
-   * @type {"sm" | "xl"}
+   * @type {"sm" | "md" | "lg" }
    */
   export let size = undefined;
 
diff --git a/src/ListBox/ListBox.svelte b/src/ListBox/ListBox.svelte
index 3443024fa3..1ce092cdda 100644
--- a/src/ListBox/ListBox.svelte
+++ b/src/ListBox/ListBox.svelte
@@ -1,7 +1,7 @@
 <script>
   /**
    * Set the size of the list box
-   * @type {"sm" | "xl"}
+   * @type {"sm" | "md" | "lg" }
    */
   export let size = undefined;
 
@@ -39,7 +39,7 @@
   data-invalid="{invalid || undefined}"
   class:bx--list-box="{true}"
   class:bx--list-box--sm="{size === 'sm'}"
-  class:bx--list-box--xl="{size === 'xl'}"
+  class:bx--list-box--lg="{size === 'lg'}"
   class:bx--list-box--inline="{type === 'inline'}"
   class:bx--list-box--disabled="{disabled}"
   class:bx--list-box--expanded="{open}"
diff --git a/types/ComboBox/ComboBox.svelte.d.ts b/types/ComboBox/ComboBox.svelte.d.ts
index 97361ff7ab..4629e48f3d 100644
--- a/types/ComboBox/ComboBox.svelte.d.ts
+++ b/types/ComboBox/ComboBox.svelte.d.ts
@@ -45,7 +45,7 @@ export interface ComboBoxProps
    * Set the size of the combobox
    * @default undefined
    */
-  size?: "sm" | "xl";
+  size?: "sm" | "md" | "lg";
 
   /**
    * Set to `true` to disable the combobox
diff --git a/types/ListBox/ListBox.svelte.d.ts b/types/ListBox/ListBox.svelte.d.ts
index 2fc23a1a3f..c7cff241d4 100644
--- a/types/ListBox/ListBox.svelte.d.ts
+++ b/types/ListBox/ListBox.svelte.d.ts
@@ -7,7 +7,7 @@ export interface ListBoxProps
    * Set the size of the list box
    * @default undefined
    */
-  size?: "sm" | "xl";
+  size?: "sm" | "md" | "lg";
 
   /**
    * Set the type of the list box