diff --git a/5-Data-Science-In-Cloud/README.md b/5-Data-Science-In-Cloud/README.md
index 2c1c0323..92cfb835 100644
--- a/5-Data-Science-In-Cloud/README.md
+++ b/5-Data-Science-In-Cloud/README.md
@@ -4,8 +4,8 @@ Now we will see why and how you can use Cloud services for Data Science.
 
 ### Topics
 
-1. [Why do Data Science in the Cloud?](21-tbd/README.md)
-2. [Optimizing a Data Science Pipeline in Azure](22-tbd/README.md)
-3. [Machine Learning Operations in the Cloud (MLOps)](23-tbd/README.md)
+1. [Why do Data Science in the Cloud?](17-tbd/README.md)
+2. [Optimizing a Data Science Pipeline in Azure](18-tbd/README.md)
+3. [Machine Learning Operations in the Cloud (MLOps)](19-tbd/README.md)
 
 ### Credits