diff --git a/lib/Doctrine/Common/Collections/AbstractLazyCollection.php b/lib/Doctrine/Common/Collections/AbstractLazyCollection.php
index 5958d9fc..b7b84c69 100644
--- a/lib/Doctrine/Common/Collections/AbstractLazyCollection.php
+++ b/lib/Doctrine/Common/Collections/AbstractLazyCollection.php
@@ -327,6 +327,8 @@ public function offsetGet($offset)
      *
      * @param mixed $value
      * @psalm-param TKey $offset
+     *
+     * @return void
      */
     #[ReturnTypeWillChange]
     public function offsetSet($offset, $value)
@@ -339,6 +341,8 @@ public function offsetSet($offset, $value)
      * {@inheritDoc}
      *
      * @psalm-param TKey $offset
+     *
+     * @return void
      */
     #[ReturnTypeWillChange]
     public function offsetUnset($offset)
diff --git a/lib/Doctrine/Common/Collections/ArrayCollection.php b/lib/Doctrine/Common/Collections/ArrayCollection.php
index 2f5bea1b..df04f984 100644
--- a/lib/Doctrine/Common/Collections/ArrayCollection.php
+++ b/lib/Doctrine/Common/Collections/ArrayCollection.php
@@ -183,6 +183,8 @@ public function offsetExists($offset)
      * {@inheritDoc}
      *
      * @psalm-param TKey $offset
+     *
+     * @return mixed
      */
     #[ReturnTypeWillChange]
     public function offsetGet($offset)
@@ -194,6 +196,8 @@ public function offsetGet($offset)
      * Required by interface ArrayAccess.
      *
      * {@inheritDoc}
+     *
+     * @return void
      */
     #[ReturnTypeWillChange]
     public function offsetSet($offset, $value)
@@ -213,6 +217,8 @@ public function offsetSet($offset, $value)
      * {@inheritDoc}
      *
      * @psalm-param TKey $offset
+     *
+     * @return void
      */
     #[ReturnTypeWillChange]
     public function offsetUnset($offset)