diff --git a/source/constants.py b/source/constants.py
index 958478f..90b9663 100755
--- a/source/constants.py
+++ b/source/constants.py
@@ -153,7 +153,7 @@ PLANT_HEALTH = 300
 WALLNUT_HEALTH = 4000
 WALLNUT_CRACKED1_HEALTH = 4000//3 * 2
 WALLNUT_CRACKED2_HEALTH = 4000//3
-WALLNUT_BOWLING_DAMAGE = 370
+WALLNUT_BOWLING_DAMAGE = 550
 
 PRODUCE_SUN_INTERVAL = 4250 # 基准
 FLOWER_SUN_INTERVAL = 24000