diff --git a/CHANGELOG.md b/CHANGELOG.md
index c78ea560..6c3eecdf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 ## 4.0.0 under development
 
 - Chg #221: Throw `LogicException` in `Tag::id()` when id is empty string (@razvbir)
+- Chg #267: Make all `CheckboxItem` and `RadioItem` properties required (@vjik)
 - Chg #234: Remove tag attributes sorting (@FrankiFixx)
 
 ## 3.13.0 March 13, 2026
diff --git a/UPGRADE.md b/UPGRADE.md
index c9d749e0..3c571379 100644
--- a/UPGRADE.md
+++ b/UPGRADE.md
@@ -11,6 +11,8 @@ application when you upgrade the package from one version to another.
 
 - `Tag::id()` now throws `LogicException` when an empty string is passed. Check your code for places where you call
   `Tag::id()` and make sure you are not passing an empty string.
+- All `CheckboxItem` and `RadioItem` properties are now required. If you create instances of these classes directly,
+  make sure to pass `$labelAttributes` and `$labelWrap` arguments explicitly.
 - HTML tag attributes are no longer sorted by `Html::renderTagAttributes()`. Previously, attributes were reordered
   according to a predefined priority list (`type`, `id`, `class`, `name`, `value`, etc.). Now attributes are rendered
   in the order they are set. If your code or tests depend on a specific attribute order in the rendered HTML, you need
diff --git a/src/Widget/CheckboxList/CheckboxItem.php b/src/Widget/CheckboxList/CheckboxItem.php
index 7df2e9e5..bef558be 100644
--- a/src/Widget/CheckboxList/CheckboxItem.php
+++ b/src/Widget/CheckboxList/CheckboxItem.php
@@ -16,7 +16,7 @@ public function __construct(
         public array $checkboxAttributes,
         public string $label,
         public bool $encodeLabel,
-        public array $labelAttributes = [],
-        public bool $labelWrap = true,
+        public array $labelAttributes,
+        public bool $labelWrap,
     ) {}
 }
diff --git a/src/Widget/RadioList/RadioItem.php b/src/Widget/RadioList/RadioItem.php
index fcd419d1..2467d874 100644
--- a/src/Widget/RadioList/RadioItem.php
+++ b/src/Widget/RadioList/RadioItem.php
@@ -16,7 +16,7 @@ public function __construct(
         public array $radioAttributes,
         public string $label,
         public bool $encodeLabel,
-        public array $labelAttributes = [],
-        public bool $labelWrap = true,
+        public array $labelAttributes,
+        public bool $labelWrap,
     ) {}
 }