diff --git a/packages/select-rich/src/LionSelectRich.js b/packages/select-rich/src/LionSelectRich.js
index 808fedaea..b38473d8a 100644
--- a/packages/select-rich/src/LionSelectRich.js
+++ b/packages/select-rich/src/LionSelectRich.js
@@ -159,6 +159,12 @@ export class LionSelectRich extends ScopedElementsMixin(
     return this.modelValue;
   }
 
+  // Duplicating from FormGroupMixin, because you cannot independently inherit/override getter + setter.
+  // If you override one, gotta override the other, they go in pairs.
+  set serializedValue(value) {
+    super.serializedValue = value;
+  }
+
   get checkedIndex() {
     let checkedIndex = -1;
     this.formElements.forEach((option, i) => {
diff --git a/packages/select-rich/test/lion-select-rich.test.js b/packages/select-rich/test/lion-select-rich.test.js
index 80ee8571e..a8054c01f 100644
--- a/packages/select-rich/test/lion-select-rich.test.js
+++ b/packages/select-rich/test/lion-select-rich.test.js
@@ -205,7 +205,7 @@ describe('lion-select-rich', () => {
       <lion-select-rich id="color" name="color" label="Favorite color" has-no-default-selected>
         <lion-options slot="input">
           <lion-option .choiceValue=${'red'}>Red</lion-option>
-          <lion-option .choiceValue=${'hotpink'} disabled>Hotpink</lion-option>
+          <lion-option .choiceValue=${'hotpink'}>Hotpink</lion-option>
           <lion-option .choiceValue=${'teal'}>Teal</lion-option>
         </lion-options>
       </lion-select-rich>
@@ -215,6 +215,25 @@ describe('lion-select-rich', () => {
     expect(el.modelValue).to.equal('');
   });
 
+  it('supports changing the selection through serializedValue setter', async () => {
+    const el = await fixture(html`
+      <lion-select-rich id="color" name="color" label="Favorite color">
+        <lion-options slot="input">
+          <lion-option .choiceValue=${'red'}>Red</lion-option>
+          <lion-option .choiceValue=${'hotpink'}>Hotpink</lion-option>
+          <lion-option .choiceValue=${'teal'}>Teal</lion-option>
+        </lion-options>
+      </lion-select-rich>
+    `);
+
+    expect(el.checkedIndex).to.equal(0);
+    expect(el.serializedValue).to.equal('red');
+
+    el.serializedValue = 'hotpink';
+    expect(el.checkedIndex).to.equal(1);
+    expect(el.serializedValue).to.equal('hotpink');
+  });
+
   describe('Invoker', () => {
     it('generates an lion-select-invoker if no invoker is provided', async () => {
       const el = await fixture(html`