diff --git a/.hash b/.hash
index 6945126..7b03c5b 100644
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@@ -3,5 +3,5 @@ fundamentals-of-ai-and-kr/module1,e7fdd58
 fundamentals-of-ai-and-kr/module2,0dff0b4
 fundamentals-of-ai-and-kr/module3,3836519
 languages-and-algorithms-for-ai/module2,0dff0b4
-machine-learning-and-data-mining,7501a6c
+machine-learning-and-data-mining,1e498f5
 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 945409d..34736ea 100644
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