diff --git a/CHANGELOG.md b/CHANGELOG.md
index fe07f783..e7d8c474 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [UNRELEASED]
+
+- Fix application of the read-only option on RichText fields.
+
 ## [1.21.28] - 2026-02-16
 
 - Fix template generation
diff --git a/templates/fields.html.twig b/templates/fields.html.twig
index fa568b2c..861c950f 100644
--- a/templates/fields.html.twig
+++ b/templates/fields.html.twig
@@ -82,6 +82,7 @@
     {% elseif type == 'richtext' %}
         {{ macros.textareaField(name, value, label, field_options|merge({
             'enable_richtext': true,
+            'disabled': readonly,
             'field_class': 'col-12',
             'label_class': '',
             'input_class': '',