diff --git a/browser/js/simple-code-editor.js b/browser/js/simple-code-editor.js
index d11e025..7819863 100644
--- a/browser/js/simple-code-editor.js
+++ b/browser/js/simple-code-editor.js
@@ -217,6 +217,7 @@ const CodeEditor = {
           el.scrolling = false;
         } else {
           el.textContent = binding.value;
+          el.removeAttribute('data-highlighted');
           hljs.highlightElement(el);
         }
       },
diff --git a/npm-package/CodeEditor.vue b/npm-package/CodeEditor.vue
index efd6c4b..86efbcf 100644
--- a/npm-package/CodeEditor.vue
+++ b/npm-package/CodeEditor.vue
@@ -223,6 +223,7 @@ export default {
           el.scrolling = false;
         } else {
           el.textContent = binding.value;
+          el.removeAttribute('data-highlighted');
           hljs.highlightElement(el);
         }
       },