diff --git a/problems/0055.跳跃游戏.md b/problems/0055.跳跃游戏.md
index 0ed03b07..80c35c03 100644
--- a/problems/0055.跳跃游戏.md
+++ b/problems/0055.跳跃游戏.md
@@ -126,8 +126,9 @@ class Solution:
         cover = 0
         if len(nums) == 1: return True
         for i in range(len(nums)):
-            cover = max(i + nums[i], cover)
-            if cover >= len(nums) - 1: return True
+            if i <= cover:
+                cover = max(i + nums[i], cover)
+                if cover >= len(nums) - 1: return True
         return False
 ```