diff --git a/.changeset/big-yaks-laugh.md b/.changeset/big-yaks-laugh.md
new file mode 100644
index 000000000..a59508505
--- /dev/null
+++ b/.changeset/big-yaks-laugh.md
@@ -0,0 +1,13 @@
+---
+'@lion/calendar': minor
+'@lion/core': minor
+'@lion/form-core': minor
+'@lion/input': minor
+'@lion/input-datepicker': minor
+'@lion/overlays': minor
+'providence-analytics': minor
+'@lion/select-rich': minor
+'@lion/switch': minor
+---
+
+Update to lit-element 2.4.0, changed all uses of \_requestUpdate into requestUpdateInterval
diff --git a/packages/calendar/src/LionCalendar.js b/packages/calendar/src/LionCalendar.js
index 34acec374..7d9f2bfec 100644
--- a/packages/calendar/src/LionCalendar.js
+++ b/packages/calendar/src/LionCalendar.js
@@ -234,8 +234,8 @@ export class LionCalendar extends LocalizeMixin(LitElement) {
   /**
    * @override
    */
-  _requestUpdate(name, oldValue) {
-    super._requestUpdate(name, oldValue);
+  requestUpdateInternal(name, oldValue) {
+    super.requestUpdateInternal(name, oldValue);
 
     const map = {
       disableDates: () => this.__disableDatesChanged(),
diff --git a/packages/core/package.json b/packages/core/package.json
index 695b3d299..2e67bbca7 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -31,8 +31,8 @@
   "dependencies": {
     "@open-wc/dedupe-mixin": "^1.2.18",
     "@open-wc/scoped-elements": "^1.0.3",
-    "lit-element": "~2.3.0",
-    "lit-html": "^1.0.0"
+    "lit-element": "~2.4.0",
+    "lit-html": "^1.3.0"
   },
   "keywords": [
     "lion",
diff --git a/packages/core/src/DisabledMixin.js b/packages/core/src/DisabledMixin.js
index c4f0926c7..05a5dab9b 100644
--- a/packages/core/src/DisabledMixin.js
+++ b/packages/core/src/DisabledMixin.js
@@ -10,7 +10,6 @@ import { dedupeMixin } from '@open-wc/dedupe-mixin';
  */
 const DisabledMixinImplementation = superclass =>
   // eslint-disable-next-line no-shadow
-  // @ts-expect-error we're overriding private _requestUpdate
   class DisabledMixinHost extends superclass {
     static get properties() {
       return {
@@ -55,9 +54,8 @@ const DisabledMixinImplementation = superclass =>
      * @param {PropertyKey} name
      * @param {?} oldValue
      */
-    _requestUpdate(name, oldValue) {
-      // @ts-expect-error
-      super._requestUpdate(name, oldValue);
+    requestUpdateInternal(name, oldValue) {
+      super.requestUpdateInternal(name, oldValue);
       if (name === 'disabled') {
         if (this.__isUserSettingDisabled) {
           this.__restoreDisabledTo = this.disabled;
diff --git a/packages/core/src/DisabledWithTabIndexMixin.js b/packages/core/src/DisabledWithTabIndexMixin.js
index 2fbcaf321..ca91a539c 100644
--- a/packages/core/src/DisabledWithTabIndexMixin.js
+++ b/packages/core/src/DisabledWithTabIndexMixin.js
@@ -11,7 +11,6 @@ import { DisabledMixin } from './DisabledMixin.js';
  */
 const DisabledWithTabIndexMixinImplementation = superclass =>
   // eslint-disable-next-line no-shadow
-  // @ts-expect-error we're overriding private _requestUpdate
   class DisabledWithTabIndexMixinHost extends DisabledMixin(superclass) {
     static get properties() {
       return {
@@ -60,9 +59,8 @@ const DisabledWithTabIndexMixinImplementation = superclass =>
      * @param {PropertyKey} name
      * @param {?} oldValue
      */
-    _requestUpdate(name, oldValue) {
-      // @ts-expect-error
-      super._requestUpdate(name, oldValue);
+    requestUpdateInternal(name, oldValue) {
+      super.requestUpdateInternal(name, oldValue);
 
       if (name === 'disabled') {
         if (this.disabled) {
diff --git a/packages/form-core/src/FormatMixin.js b/packages/form-core/src/FormatMixin.js
index 91c58be00..d2628834b 100644
--- a/packages/form-core/src/FormatMixin.js
+++ b/packages/form-core/src/FormatMixin.js
@@ -119,8 +119,8 @@ const FormatMixinImplementation = superclass =>
      * @param {string} name
      * @param {any} oldVal
      */
-    _requestUpdate(name, oldVal) {
-      super._requestUpdate(name, oldVal);
+    requestUpdateInternal(name, oldVal) {
+      super.requestUpdateInternal(name, oldVal);
 
       if (name === 'modelValue' && this.modelValue !== oldVal) {
         this._onModelValueChanged({ modelValue: this.modelValue }, { modelValue: oldVal });
diff --git a/packages/form-core/src/InteractionStateMixin.js b/packages/form-core/src/InteractionStateMixin.js
index b2c292c5d..8bc4e5b05 100644
--- a/packages/form-core/src/InteractionStateMixin.js
+++ b/packages/form-core/src/InteractionStateMixin.js
@@ -67,14 +67,14 @@ const InteractionStateMixinImplementation = superclass =>
      * @param {PropertyKey} name
      * @param {*} oldVal
      */
-    _requestUpdate(name, oldVal) {
-      super._requestUpdate(name, oldVal);
+    requestUpdateInternal(name, oldVal) {
+      super.requestUpdateInternal(name, oldVal);
       if (name === 'touched' && this.touched !== oldVal) {
         this._onTouchedChanged();
       }
 
       if (name === 'modelValue') {
-        // We do this in _requestUpdate because we don't want to fire another re-render (e.g. when doing this in updated)
+        // We do this in requestUpdateInternal because we don't want to fire another re-render (e.g. when doing this in updated)
         // Furthermore, we cannot do it on model-value-changed event because it isn't fired initially.
         this.filled = !this._isEmpty();
       }
diff --git a/packages/form-core/src/choice-group/ChoiceInputMixin.js b/packages/form-core/src/choice-group/ChoiceInputMixin.js
index a240adae6..4650a5c0e 100644
--- a/packages/form-core/src/choice-group/ChoiceInputMixin.js
+++ b/packages/form-core/src/choice-group/ChoiceInputMixin.js
@@ -48,8 +48,8 @@ export const ChoiceInputMixin = superclass =>
       }
     }
 
-    _requestUpdate(name, oldValue) {
-      super._requestUpdate(name, oldValue);
+    requestUpdateInternal(name, oldValue) {
+      super.requestUpdateInternal(name, oldValue);
 
       if (name === 'modelValue') {
         if (this.modelValue.checked !== this.checked) {
@@ -177,7 +177,7 @@ export const ChoiceInputMixin = superclass =>
     /**
      * @override
      * hasChanged is designed for async (updated) callback, also check for sync
-     * (_requestUpdate) callback
+     * (requestUpdateInternal) callback
      */
     _onModelValueChanged({ modelValue }, { modelValue: old }) {
       if (this.constructor._classProperties.get('modelValue').hasChanged(modelValue, old)) {
diff --git a/packages/form-core/src/utils/SyncUpdatableMixin.js b/packages/form-core/src/utils/SyncUpdatableMixin.js
index aba661f16..6591afc54 100644
--- a/packages/form-core/src/utils/SyncUpdatableMixin.js
+++ b/packages/form-core/src/utils/SyncUpdatableMixin.js
@@ -17,8 +17,8 @@ import { dedupeMixin } from '@lion/core';
  * - makes the propertyAccessor.`hasChanged` compatible in synchronous updates:
  * `updateSync` will only be called when new value differs from old value.
  * See: https://lit-element.polymer-project.org/guide/lifecycle#haschanged
- * - it is a stable abstaction on top of a protected/non offical lifecycle LitElement api.
- * Whenever the implementation of `_requestUpdate` changes (this happened in the past for
+ * - it is a stable abstraction on top of a protected/non official lifecycle LitElement api.
+ * Whenever the implementation of `requestUpdateInternal` changes (this happened in the past for
  * `requestUpdate`) we only have to change our abstraction instead of all our components
  * @type {SyncUpdatableMixin}
  */
@@ -78,8 +78,8 @@ const SyncUpdatableMixinImplementation = superclass =>
      * @param {string} name
      * @param {*} oldValue
      */
-    _requestUpdate(name, oldValue) {
-      super._requestUpdate(name, oldValue);
+    requestUpdateInternal(name, oldValue) {
+      super.requestUpdateInternal(name, oldValue);
 
       this.__SyncUpdatableNamespace = this.__SyncUpdatableNamespace || {};
       const ns = this.__SyncUpdatableNamespace;
@@ -98,8 +98,8 @@ const SyncUpdatableMixinImplementation = superclass =>
     }
 
     /**
-     * @desc A public abstraction that has the exact same api as `_requestUpdate`.
-     * All code previously present in _requestUpdate can be placed in this method.
+     * @desc A public abstraction that has the exact same api as `requestUpdateInternal`.
+     * All code previously present in requestUpdateInternal can be placed in this method.
      * @param {string} name
      * @param {*} oldValue
      */
diff --git a/packages/form-core/test/utils/SyncUpdatableMixin.test.js b/packages/form-core/test/utils/SyncUpdatableMixin.test.js
index 38ba9bf72..7a0a788cc 100644
--- a/packages/form-core/test/utils/SyncUpdatableMixin.test.js
+++ b/packages/form-core/test/utils/SyncUpdatableMixin.test.js
@@ -151,9 +151,9 @@ describe('SyncUpdatableMixin', () => {
          * @param {string} name
          * @param {*} oldValue
          */
-        _requestUpdate(name, oldValue) {
+        requestUpdateInternal(name, oldValue) {
           // @ts-ignore the private override is on purpose
-          super._requestUpdate(name, oldValue);
+          super.requestUpdateInternal(name, oldValue);
           if (name === 'prop') {
             propChangedCount += 1;
           }
diff --git a/packages/input-datepicker/src/LionInputDatepicker.js b/packages/input-datepicker/src/LionInputDatepicker.js
index 25bd33dd5..52cc7e3ca 100644
--- a/packages/input-datepicker/src/LionInputDatepicker.js
+++ b/packages/input-datepicker/src/LionInputDatepicker.js
@@ -172,8 +172,8 @@ export class LionInputDatepicker extends ScopedElementsMixin(OverlayMixin(LionIn
     return `${this.localName}-${Math.random().toString(36).substr(2, 10)}`;
   }
 
-  _requestUpdate(name, oldValue) {
-    super._requestUpdate(name, oldValue);
+  requestUpdateInternal(name, oldValue) {
+    super.requestUpdateInternal(name, oldValue);
 
     if (name === 'disabled' || name === 'readOnly') {
       this.__toggleInvokerDisabled();
diff --git a/packages/input/src/LionInput.js b/packages/input/src/LionInput.js
index d995769a9..5553f0de5 100644
--- a/packages/input/src/LionInput.js
+++ b/packages/input/src/LionInput.js
@@ -53,8 +53,8 @@ export class LionInput extends LionField {
     this.type = 'text';
   }
 
-  _requestUpdate(name, oldValue) {
-    super._requestUpdate(name, oldValue);
+  requestUpdateInternal(name, oldValue) {
+    super.requestUpdateInternal(name, oldValue);
     if (name === 'readOnly') {
       this.__delegateReadOnly();
     }
diff --git a/packages/overlays/src/OverlayMixin.js b/packages/overlays/src/OverlayMixin.js
index 5c687dd94..0a619bdb6 100644
--- a/packages/overlays/src/OverlayMixin.js
+++ b/packages/overlays/src/OverlayMixin.js
@@ -40,8 +40,8 @@ export const OverlayMixin = dedupeMixin(
         this.__config = value;
       }
 
-      _requestUpdate(name, oldValue) {
-        super._requestUpdate(name, oldValue);
+      requestUpdateInternal(name, oldValue) {
+        super.requestUpdateInternal(name, oldValue);
         if (name === 'opened') {
           this.dispatchEvent(new Event('opened-changed'));
         }
diff --git a/packages/providence-analytics/package.json b/packages/providence-analytics/package.json
index 313bdb2dd..ba4970ffa 100644
--- a/packages/providence-analytics/package.json
+++ b/packages/providence-analytics/package.json
@@ -45,7 +45,7 @@
     "htm": "^3.0.3",
     "inquirer": "^7.0.0",
     "is-negated-glob": "^1.0.0",
-    "lit-element": "~2.3.0",
+    "lit-element": "~2.4.0",
     "ora": "^3.4.0",
     "parse5": "^5.1.1",
     "read-package-tree": "5.3.1",
diff --git a/packages/providence-analytics/src/program/analyzers/find-classes.js b/packages/providence-analytics/src/program/analyzers/find-classes.js
index 5314c5949..b331bbec1 100644
--- a/packages/providence-analytics/src/program/analyzers/find-classes.js
+++ b/packages/providence-analytics/src/program/analyzers/find-classes.js
@@ -56,7 +56,7 @@ async function findMembersPerAstEntry(ast, fullCurrentFilePath, projectPath) {
   //   // Handle methods
   //   const mBlacklistPlatform = ['constructor', 'connectedCallback', 'disconnectedCallback'];
   //   const mBlacklistLitEl = [
-  //     '_requestUpdate',
+  //     'requestUpdateInternal',
   //     'createRenderRoot',
   //     'render',
   //     'updated',
diff --git a/packages/providence-analytics/test-helpers/project-mocks-analyzer-outputs/find-classes.json b/packages/providence-analytics/test-helpers/project-mocks-analyzer-outputs/find-classes.json
index 8a1d0e0da..859f2b420 100644
--- a/packages/providence-analytics/test-helpers/project-mocks-analyzer-outputs/find-classes.json
+++ b/packages/providence-analytics/test-helpers/project-mocks-analyzer-outputs/find-classes.json
@@ -179,7 +179,7 @@
                 "accessType": "public"
               },
               {
-                "name": "_requestUpdate",
+                "name": "requestUpdateInternal",
                 "accessType": "protected"
               },
               {
diff --git a/packages/providence-analytics/test-helpers/project-mocks/importing-target-project/target-src/match-subclasses/ExtendedComp.js b/packages/providence-analytics/test-helpers/project-mocks/importing-target-project/target-src/match-subclasses/ExtendedComp.js
index d3986bc97..375eff707 100644
--- a/packages/providence-analytics/test-helpers/project-mocks/importing-target-project/target-src/match-subclasses/ExtendedComp.js
+++ b/packages/providence-analytics/test-helpers/project-mocks/importing-target-project/target-src/match-subclasses/ExtendedComp.js
@@ -30,7 +30,7 @@ export class ExtendedComp extends MyCompMixin(RefClass) {
   static get properties() {}
   static get styles() {}
   get updateComplete() {}
-  _requestUpdate() {}
+  requestUpdateInternal() {}
   createRenderRoot() {}
   render() {}
   updated() {}
diff --git a/packages/providence-analytics/test-node/program/analyzers/find-classes.test.js b/packages/providence-analytics/test-node/program/analyzers/find-classes.test.js
index f50ac9415..2b5ef919b 100644
--- a/packages/providence-analytics/test-node/program/analyzers/find-classes.test.js
+++ b/packages/providence-analytics/test-node/program/analyzers/find-classes.test.js
@@ -213,7 +213,7 @@ describe('Analyzer "find-classes"', () => {
           static get properties() {}
           static get styles() {}
           get updateComplete() {}
-          _requestUpdate() {}
+          requestUpdateInternal() {}
           createRenderRoot() {}
           render() {}
           updated() {}
diff --git a/packages/select-rich/src/LionOption.js b/packages/select-rich/src/LionOption.js
index 58809812f..7af128a70 100644
--- a/packages/select-rich/src/LionOption.js
+++ b/packages/select-rich/src/LionOption.js
@@ -57,8 +57,8 @@ export class LionOption extends DisabledMixin(ChoiceInputMixin(FormRegisteringMi
     this.__registerEventListeners();
   }
 
-  _requestUpdate(name, oldValue) {
-    super._requestUpdate(name, oldValue);
+  requestUpdateInternal(name, oldValue) {
+    super.requestUpdateInternal(name, oldValue);
 
     if (name === 'active') {
       this.dispatchEvent(new Event('active-changed', { bubbles: true }));
diff --git a/packages/select-rich/src/LionSelectRich.js b/packages/select-rich/src/LionSelectRich.js
index b39341ae4..0557f374b 100644
--- a/packages/select-rich/src/LionSelectRich.js
+++ b/packages/select-rich/src/LionSelectRich.js
@@ -228,8 +228,8 @@ export class LionSelectRich extends ScopedElementsMixin(
     }
   }
 
-  _requestUpdate(name, oldValue) {
-    super._requestUpdate(name, oldValue);
+  requestUpdateInternal(name, oldValue) {
+    super.requestUpdateInternal(name, oldValue);
     if (name === 'interactionMode') {
       if (this.interactionMode === 'auto') {
         this.interactionMode = detectInteractionMode();
diff --git a/packages/switch/src/LionSwitchButton.js b/packages/switch/src/LionSwitchButton.js
index 033aed84c..a51987a2f 100644
--- a/packages/switch/src/LionSwitchButton.js
+++ b/packages/switch/src/LionSwitchButton.js
@@ -124,8 +124,8 @@ export class LionSwitchButton extends DisabledWithTabIndexMixin(LitElement) {
    *
    * @override
    */
-  _requestUpdate(name, oldValue) {
-    super._requestUpdate(name, oldValue);
+  requestUpdateInternal(name, oldValue) {
+    super.requestUpdateInternal(name, oldValue);
     if (this.isConnected && name === 'checked') {
       this.setAttribute('aria-checked', `${this.checked}`);
     }
diff --git a/yarn.lock b/yarn.lock
index abec5438f..29ed43917 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7413,7 +7413,7 @@ listr2@^2.1.0:
     rxjs "^6.6.2"
     through "^2.3.8"
 
-lit-element@^2.2.1, lit-element@^2.3.1:
+lit-element@^2.2.1, lit-element@^2.3.1, lit-element@~2.4.0:
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/lit-element/-/lit-element-2.4.0.tgz#b22607a037a8fc08f5a80736dddf7f3f5d401452"
   integrity sha512-pBGLglxyhq/Prk2H91nA0KByq/hx/wssJBQFiYqXhGDvEnY31PRGYf1RglVzyLeRysu0IHm2K0P196uLLWmwFg==
@@ -7427,7 +7427,7 @@ lit-element@~2.3.0:
   dependencies:
     lit-html "^1.1.1"
 
-lit-html@^1.0.0, lit-html@^1.1.1, lit-html@^1.2.1:
+lit-html@^1.0.0, lit-html@^1.1.1, lit-html@^1.2.1, lit-html@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/lit-html/-/lit-html-1.3.0.tgz#c80f3cc5793a6dea6c07172be90a70ab20e56034"
   integrity sha512-0Q1bwmaFH9O14vycPHw8C/IeHMk/uSDldVLIefu/kfbTBGIc44KGH6A8p1bDfxUfHdc8q6Ct7kQklWoHgr4t1Q==