diff --git a/CHANGELOG.md b/CHANGELOG.md
index a089987..3680fb4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@ All notable changes to this project will be documented in this file. Dates are d
 
 Generated by [`auto-changelog`](https://github.com/CookPete/auto-changelog).
 
+### [10.4.5](https://github.com/eea/volto-accordion-block/compare/10.4.4...10.4.5) - 10 December 2023
+
 ### [10.4.4](https://github.com/eea/volto-accordion-block/compare/10.4.3...10.4.4) - 24 November 2023
 
 #### :bug: Bug Fixes
diff --git a/package.json b/package.json
index 377434c..d70bb42 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@eeacms/volto-accordion-block",
-  "version": "10.4.4",
+  "version": "10.4.5",
   "description": "volto-accordion-block: Volto accordion block",
   "main": "src/index.js",
   "author": "European Environment Agency: IDM2 A-Team",
diff --git a/src/components/manage/Widgets/PanelsWidget.jsx b/src/components/manage/Widgets/PanelsWidget.jsx
index ce6ed93..682d6c1 100644
--- a/src/components/manage/Widgets/PanelsWidget.jsx
+++ b/src/components/manage/Widgets/PanelsWidget.jsx
@@ -66,7 +66,7 @@ const PanelsWidget = (props) => {
                 },
                 blocks_layout: {
                   ...value.blocks_layout,
-                  items: [...value.blocks_layout?.items, newId],
+                  items: [...(value.blocks_layout?.items || []), newId],
                 },
               });
             }}
@@ -133,7 +133,7 @@ const PanelsWidget = (props) => {
                           blocks_layout: {
                             ...value.blocks_layout,
                             items: without(
-                              [...value.blocks_layout?.items],
+                              [...(value.blocks_layout?.items || [])],
                               childId,
                             ),
                           },