diff --git a/contrib/machine-learning/index.md b/contrib/machine-learning/index.md
index 0bf39f9..0369c43 100644
--- a/contrib/machine-learning/index.md
+++ b/contrib/machine-learning/index.md
@@ -20,3 +20,4 @@
 - [Grid Search](grid-search.md)
 - [Transformers](transformers.md)
 - [K-nearest neighbor (KNN)](knn.md)
+- [Naive Bayes](naive-bayes.md)