diff --git a/.hash b/.hash
index 91ce3f2..3e6cd52 100644
--- a/.hash
+++ b/.hash
@@ -3,5 +3,5 @@ fundamentals-of-ai-and-kr/module1,27778b1
 fundamentals-of-ai-and-kr/module2,b179167
 fundamentals-of-ai-and-kr/module3,58eee04
 languages-and-algorithms-for-ai/module2,f23e2ff
-machine-learning-and-data-mining,be45bdc
+machine-learning-and-data-mining,0f3963d
 statistical-and-mathematical-methods-for-ai,b8b751d
diff --git a/machine-learning-and-data-mining/main.pdf b/machine-learning-and-data-mining/main.pdf
index 728ae6a..0ebfd34 100644
Binary files a/machine-learning-and-data-mining/main.pdf and b/machine-learning-and-data-mining/main.pdf differ