diff --git a/Recursion/Recursion Interview Problems/Recursion Problems -  SOLUTIONS/Recursion Problem 4 - Coin Change - SOLUTION.ipynb b/Recursion/Recursion Interview Problems/Recursion Problems -  SOLUTIONS/Recursion Problem 4 - Coin Change - SOLUTION.ipynb
index 2368b86b..0ee2ceef 100644
--- a/Recursion/Recursion Interview Problems/Recursion Problems -  SOLUTIONS/Recursion Problem 4 - Coin Change - SOLUTION.ipynb	
+++ b/Recursion/Recursion Interview Problems/Recursion Problems -  SOLUTIONS/Recursion Problem 4 - Coin Change - SOLUTION.ipynb	
@@ -271,7 +271,7 @@
     "For homework, read the link below and also implement the non-recursive solution described in the link!\n",
     "\n",
     "For another great resource on a variation of this problem, check out this link:\n",
-    "[Dynamic Programming Coin Change Problem](http://interactivepython.org/runestone/static/pythonds/Recursion/DynamicProgramming.html)"
+    "[Dynamic Programming Coin Change Problem](https://runestone.academy/runestone/books/published/pythonds/Recursion/DynamicProgramming.html)"
    ]
   }
  ],