diff --git a/100_Numpy_exercises_with_hint.md b/100_Numpy_exercises_with_hint.md
index 43aaccb..e926efa 100644
--- a/100_Numpy_exercises_with_hint.md
+++ b/100_Numpy_exercises_with_hint.md
@@ -606,7 +606,7 @@ np.sqrt(-1) == np.emath.sqrt(-1)
 
 #### 96. Given a two dimensional array, how to extract unique rows? (★★★) 
 
-(**hint**: np.ascontiguousarray)
+(**hint**: np.ascontiguousarray | np.unique)