How to reduce the shadow when clicking on an ImageButton?

Question

Java

How to reduce the shadow when clicking on an ImageButton? (ImageButton is inside LinerLayout)

<LinearLayout
       android:layout_width="fill_parent"
       android:layout_height="wrap_content"
       android:layout_marginEnd="4dp"
       android:layout_centerVertical="true"
       android:orientation="horizontal">

            <ImageButton
                android:layout_width="45dp"
                android:layout_height="45dp"
                android:background="?attr/selectableItemBackgroundBorderless"
                android:src="@drawable/ic_bottom_menu_attachment"/>

 </LinearLayout>