diff --git a/.changeset/fresh-moles-reflect.md b/.changeset/fresh-moles-reflect.md
new file mode 100644
index 000000000..a69a5a121
--- /dev/null
+++ b/.changeset/fresh-moles-reflect.md
@@ -0,0 +1,5 @@
+---
+'@lion/ui': patch
+---
+
+migrate deprecated `performUpdate` api to `scheduleUpdate`
diff --git a/packages/ui/components/form-core/test-suites/FormRegistrationMixins.suite.js b/packages/ui/components/form-core/test-suites/FormRegistrationMixins.suite.js
index db74a8694..f87398391 100644
--- a/packages/ui/components/form-core/test-suites/FormRegistrationMixins.suite.js
+++ b/packages/ui/components/form-core/test-suites/FormRegistrationMixins.suite.js
@@ -163,20 +163,20 @@ export const runRegistrationSuite = customConfig => {
     });
 
     it('works for components that have a delayed render', async () => {
-      class PerformUpdate extends FormRegistrarMixin(LitElement) {
-        async performUpdate() {
+      class ScheduleUpdate extends FormRegistrarMixin(LitElement) {
+        async scheduleUpdate() {
           // eslint-disable-next-line no-promise-executor-return
           await new Promise(resolve => setTimeout(() => resolve(undefined), 10));
-          await super.performUpdate();
+          await super.scheduleUpdate();
         }
 
         render() {
           return html`<slot></slot>`;
         }
       }
-      const tagWrapperString = defineCE(PerformUpdate);
+      const tagWrapperString = defineCE(ScheduleUpdate);
       const tagWrapper = unsafeStatic(tagWrapperString);
-      const el = /** @type {PerformUpdate} */ (
+      const el = /** @type {ScheduleUpdate} */ (
         await fixture(html`
         <${tagWrapper}>
           <${childTag}></${childTag}>
@@ -359,10 +359,10 @@ export const runRegistrationSuite = customConfig => {
       it('works for portals that have a delayed render', async () => {
         const delayedPortalString = defineCE(
           class extends FormRegistrarPortalMixin(LitElement) {
-            async performUpdate() {
+            async scheduleUpdate() {
               // eslint-disable-next-line no-promise-executor-return
               await new Promise(resolve => setTimeout(() => resolve(undefined), 10));
-              await super.performUpdate();
+              await super.scheduleUpdate();
             }
 
             render() {
diff --git a/packages/ui/components/localize/src/LocalizeMixin.js b/packages/ui/components/localize/src/LocalizeMixin.js
index 240f3bba0..d8c886eb0 100644
--- a/packages/ui/components/localize/src/LocalizeMixin.js
+++ b/packages/ui/components/localize/src/LocalizeMixin.js
@@ -64,11 +64,11 @@ const LocalizeMixinImplementation = superclass =>
      * hook into LitElement to only render once all translations are loaded
      * @returns {Promise.<void>}
      */
-    async performUpdate() {
+    async scheduleUpdate() {
       if (Object.getPrototypeOf(this).constructor.waitForLocalizeNamespaces) {
         await this.localizeNamespacesLoaded;
       }
-      super.performUpdate();
+      super.scheduleUpdate();
     }
 
     connectedCallback() {