diff --git a/NeetCodeRoadmap/Two_Pointers/42_Trapping_Rain_Water.py b/NeetCodeRoadmap/Two_Pointers/42_Trapping_Rain_Water.py
index e13aec7..b2e5ba9 100644
--- a/NeetCodeRoadmap/Two_Pointers/42_Trapping_Rain_Water.py
+++ b/NeetCodeRoadmap/Two_Pointers/42_Trapping_Rain_Water.py
@@ -68,7 +68,7 @@ def sumBacketsReverce(self, height: list[int], left, right):
         return total, locationMinRight
 
 
-def trap(self, height: List[int]) -> int:                      
+def trap(self, height: list[int]) -> int:                      
     right = len(height)-1
     left =0
     totalSum =0