diff --git a/.hash b/.hash
index 62efad4..b7918ee 100644
--- a/.hash
+++ b/.hash
@@ -3,5 +3,5 @@ fundamentals-of-ai-and-kr/module1,8690306
 fundamentals-of-ai-and-kr/module2,2ef29c7
 fundamentals-of-ai-and-kr/module3,58eee04
 languages-and-algorithms-for-ai/module2,0dff0b4
-machine-learning-and-data-mining,1e498f5
+machine-learning-and-data-mining,098bb90
 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 34736ea..ab52e3e 100644
Binary files a/machine-learning-and-data-mining/main.pdf and b/machine-learning-and-data-mining/main.pdf differ