diff --git a/src/data/roadmaps/ai-data-scientist/content/ab-testing@mJq9b50MJM9o9dLhx40iN.md b/src/data/roadmaps/ai-data-scientist/content/ab-testing@mJq9b50MJM9o9dLhx40iN.md
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--- a/src/data/roadmaps/ai-data-scientist/content/ab-testing@mJq9b50MJM9o9dLhx40iN.md
+++ b/src/data/roadmaps/ai-data-scientist/content/ab-testing@mJq9b50MJM9o9dLhx40iN.md
@@ -1,5 +1,5 @@
 # AB Testing
 
 - [@article@Practitioner’s Guide to Statistical Tests](https://vkteam.medium.com/practitioners-guide-to-statistical-tests-ed2d580ef04f#1e3b)
-- [@article@Step by Step Process for Planning an A/B Test](https://towardsdatascience.com/step-by-step-for-planning-an-a-b-test-ef3c93143c0b)
+- [@article@Step by Step Process for Planning an A/B Test](https://medium.com/data-science/step-by-step-for-planning-an-a-b-test-ef3c93143c0b)
 - [@feed@Explore top posts about A/B Testing](https://app.daily.dev/tags/ab-testing?ref=roadmapsh)