diff --git a/data_structure/associative_array/gen/unordered_map_killer.cpp b/data_structure/associative_array/gen/unordered_map_killer.cpp
index 8a3cfaa16..c595cec84 100644
--- a/data_structure/associative_array/gen/unordered_map_killer.cpp
+++ b/data_structure/associative_array/gen/unordered_map_killer.cpp
@@ -6,7 +6,8 @@
 using namespace std;
 
 /*
-このコードでMAGICが計算可能 参考: https://kimiyuki.net/blog/2017/03/08/unordered-map-hash-collision/
+このコードでMAGICが計算可能
+参考 https://kmyk.github.io/blog/blog/2017/03/08/unordered-map-hash-collision/
 
 #include <iostream>
 #include <unordered_map>