diff --git a/res/drawable/work_card.xml b/res/drawable/work_card.xml
index 4a66cac..9bf2b8d 100644
--- a/res/drawable/work_card.xml
+++ b/res/drawable/work_card.xml
@@ -16,9 +16,8 @@
 
 
 <shape xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:androidprv="http://schemas.android.com/apk/prv/res/android"
     android:shape="rectangle">
-    <solid android:color="?androidprv:attr/colorSurface" />
+    <solid android:color="@color/material_color_surface_container_highest" />
     <corners android:radius="@dimen/work_edu_card_radius" />
 </shape>