diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -76,7 +76,7 @@
 - [Accelerate: The Science of Lean Software and DevOps](https://www.amazon.com/Accelerate-Software-Performing-Technology-Organizations/dp/1942788339)
 - [Facebook Engineering Process with Kent Beck](https://softwareengineeringdaily.com/2019/08/28/facebook-engineering-process-with-kent-beck/)
 - [Trunk Based Development](https://trunkbaseddevelopment.com/)
-- [Step-by-step: Programming incrementally](https://ourmachinery.com/post/step-by-step-programming-incrementally/)
+- [Step-by-step: Programming incrementally](https://www.gamedeveloper.com/programming/step-by-step-programming-incrementally)
 - [Semantic Compression](https://caseymuratori.com/blog_0015)
 
 Getting set up with the Bitcoin ABC Repository