diff --git a/UPGRADE.md b/UPGRADE.md
index 253ccad1..d6715305 100644
--- a/UPGRADE.md
+++ b/UPGRADE.md
@@ -1,5 +1,8 @@
 # Upgrade Notes
 
+## 5.2.1
+- **[IMPROVEMENT]** Accessibility form field attribute autocomplete
+
 ## 5.2.0
 - **[LICENSE]** Dual-License with GPL and Dachcom Commercial License (DCL) added
 - **[NEW FEATURE]** Bootstrap 5 Layout Support [@mackrais](https://github.com/dachcom-digital/pimcore-formbuilder/pull/500)
diff --git a/config/pimcore/config.yaml b/config/pimcore/config.yaml
index 788fbe48..d3c7829b 100644
--- a/config/pimcore/config.yaml
+++ b/config/pimcore/config.yaml
@@ -35,6 +35,7 @@ parameters:
         - ['onmouseover','onmouseover']
         - ['onmouseup','onmouseup']
         - ['onselect','onselect']
+        - ['autocomplete','autocomplete']
     form_builder_field_attributes: '%form_builder_form_attributes%'
 
 flysystem: