diff --git a/solution/0300-0399/0354.Russian Doll Envelopes/README.md b/solution/0300-0399/0354.Russian Doll Envelopes/README.md
index 5b6a6318c51c0..7916f3406ca0b 100644
--- a/solution/0300-0399/0354.Russian Doll Envelopes/README.md	
+++ b/solution/0300-0399/0354.Russian Doll Envelopes/README.md	
@@ -76,8 +76,6 @@ class Solution:
                 d.append(h)
             else:
                 idx = bisect_left(d, h)
-                if idx == len(d):
-                    idx = 0
                 d[idx] = h
         return len(d)
 ```
diff --git a/solution/0300-0399/0354.Russian Doll Envelopes/README_EN.md b/solution/0300-0399/0354.Russian Doll Envelopes/README_EN.md
index 5b0b9660ee708..5e15b6239b9be 100644
--- a/solution/0300-0399/0354.Russian Doll Envelopes/README_EN.md	
+++ b/solution/0300-0399/0354.Russian Doll Envelopes/README_EN.md	
@@ -74,8 +74,6 @@ class Solution:
                 d.append(h)
             else:
                 idx = bisect_left(d, h)
-                if idx == len(d):
-                    idx = 0
                 d[idx] = h
         return len(d)
 ```
diff --git a/solution/0300-0399/0354.Russian Doll Envelopes/Solution.py b/solution/0300-0399/0354.Russian Doll Envelopes/Solution.py
index 14a6b94494677..8e0b209522d1f 100644
--- a/solution/0300-0399/0354.Russian Doll Envelopes/Solution.py	
+++ b/solution/0300-0399/0354.Russian Doll Envelopes/Solution.py	
@@ -7,7 +7,5 @@ def maxEnvelopes(self, envelopes: List[List[int]]) -> int:
                 d.append(h)
             else:
                 idx = bisect_left(d, h)
-                if idx == len(d):
-                    idx = 0
                 d[idx] = h
         return len(d)