diff --git a/kyu_6/numericals_of_string/README.md b/kyu_6/numericals_of_string/README.md
index 62ee9940341..10ab386dafa 100644
--- a/kyu_6/numericals_of_string/README.md
+++ b/kyu_6/numericals_of_string/README.md
@@ -20,4 +20,4 @@ But will your code be **performant enough**?
 
 There might be some non-ascii characters in the string.
 
-[Source](https://www.codewars.com/kata/5b4070144d7d8bbfe7000001/train/python)
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+[Source](https://www.codewars.com/kata/5b4070144d7d8bbfe7000001)
\ No newline at end of file