diff --git a/packages/pluggableWidgets/html-element-web/CHANGELOG.md b/packages/pluggableWidgets/html-element-web/CHANGELOG.md
index 7e41f87bd4..669918e9d1 100644
--- a/packages/pluggableWidgets/html-element-web/CHANGELOG.md
+++ b/packages/pluggableWidgets/html-element-web/CHANGELOG.md
@@ -6,6 +6,12 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased]
 
+## [1.2.3] - 2025-11-05
+
+### Fixed
+
+- Fixed the React unique key prop error when widget is used as non-repeated element
+
 ## [1.2.2] - 2025-03-14
 
 ### Security
diff --git a/packages/pluggableWidgets/html-element-web/package.json b/packages/pluggableWidgets/html-element-web/package.json
index f62b156e95..8d023a12df 100644
--- a/packages/pluggableWidgets/html-element-web/package.json
+++ b/packages/pluggableWidgets/html-element-web/package.json
@@ -1,7 +1,7 @@
 {
     "name": "@mendix/html-element-web",
     "widgetName": "HTMLElement",
-    "version": "1.2.2",
+    "version": "1.2.3",
     "description": "Displays custom HTML",
     "copyright": "© Mendix Technology BV 2025. All rights reserved.",
     "license": "Apache-2.0",
diff --git a/packages/pluggableWidgets/html-element-web/src/HTMLElement.tsx b/packages/pluggableWidgets/html-element-web/src/HTMLElement.tsx
index 10b5874968..70ad343d44 100644
--- a/packages/pluggableWidgets/html-element-web/src/HTMLElement.tsx
+++ b/packages/pluggableWidgets/html-element-web/src/HTMLElement.tsx
@@ -22,9 +22,9 @@ export function HTMLElement(props: HTMLElementContainerProps): ReactElement | nu
 
     return (
         <Fragment>
-            {items.map(item => (
+            {items.map((item, index) => (
                 <HTMLTag
-                    key={item?.id}
+                    key={item?.id || index}
                     tagName={tag as keyof JSX.IntrinsicElements}
                     attributes={{
                         ...prepareAttributes(createAttributeResolver(item), props.attributes, props.class, props.style),
diff --git a/packages/pluggableWidgets/html-element-web/src/components/__tests__/HTMLTag.spec.tsx b/packages/pluggableWidgets/html-element-web/src/components/__tests__/HTMLTag.spec.tsx
index 9cfb1b9b6e..839d38a6c5 100644
--- a/packages/pluggableWidgets/html-element-web/src/components/__tests__/HTMLTag.spec.tsx
+++ b/packages/pluggableWidgets/html-element-web/src/components/__tests__/HTMLTag.spec.tsx
@@ -37,7 +37,7 @@ describe("HTMLTag", () => {
     });
 
     it("with innerHTML apply html sanitizing", () => {
-        const checkSapshot = (html: string): void => {
+        const checkSnapshot = (html: string): void => {
             expect(
                 render(
                     <HTMLTag
@@ -53,10 +53,10 @@ describe("HTMLTag", () => {
             ).toMatchSnapshot();
         };
 
-        checkSapshot("<p>Lorem ipsum <script>alert(1)</script></p>");
-        checkSapshot("<img src=x onerror=alert(1)>");
-        checkSapshot(`<b onmouseover=alert(‘XSS testing!‘)>ok</b>`);
-        checkSapshot("<a>123</a><option><style><img src=x onerror=alert(1)></style>");
+        checkSnapshot("<p>Lorem ipsum <script>alert(1)</script></p>");
+        checkSnapshot("<img src=x onerror=alert(1)>");
+        checkSnapshot(`<b onmouseover=alert(‘XSS testing!‘)>ok</b>`);
+        checkSnapshot("<a>123</a><option><style><img src=x onerror=alert(1)></style>");
     });
 
     it("fires events", async () => {
diff --git a/packages/pluggableWidgets/html-element-web/src/package.xml b/packages/pluggableWidgets/html-element-web/src/package.xml
index e2e695ed9b..271519c5e0 100644
--- a/packages/pluggableWidgets/html-element-web/src/package.xml
+++ b/packages/pluggableWidgets/html-element-web/src/package.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <package xmlns="http://www.mendix.com/package/1.0/">
-    <clientModule name="HTMLElement" version="1.2.2" xmlns="http://www.mendix.com/clientModule/1.0/">
+    <clientModule name="HTMLElement" version="1.2.3" xmlns="http://www.mendix.com/clientModule/1.0/">
         <widgetFiles>
             <widgetFile path="HTMLElement.xml" />
         </widgetFiles>