diff --git a/.hash b/.hash
index 5977535..8fbc8d3 100644
--- a/.hash
+++ b/.hash
@@ -1,6 +1,6 @@
 ainotes.cls,4b2f613
 fundamentals-of-ai-and-kr/module1,1677e27
-fundamentals-of-ai-and-kr/module2,1677e27
+fundamentals-of-ai-and-kr/module2,9622aab
 fundamentals-of-ai-and-kr/module3,1677e27
 languages-and-algorithms-for-ai/module2,1677e27
 machine-learning-and-data-mining,1677e27
diff --git a/fundamentals-of-ai-and-kr/module2/faikr2.pdf b/fundamentals-of-ai-and-kr/module2/faikr2.pdf
index f125c21..6aaca4b 100644
Binary files a/fundamentals-of-ai-and-kr/module2/faikr2.pdf and b/fundamentals-of-ai-and-kr/module2/faikr2.pdf differ