diff --git a/.hash b/.hash
index 349a01d..62efad4 100644
--- a/.hash
+++ b/.hash
@@ -1,7 +1,7 @@
 ainotes.cls,dc59cd4
 fundamentals-of-ai-and-kr/module1,8690306
 fundamentals-of-ai-and-kr/module2,2ef29c7
-fundamentals-of-ai-and-kr/module3,3836519
+fundamentals-of-ai-and-kr/module3,58eee04
 languages-and-algorithms-for-ai/module2,0dff0b4
 machine-learning-and-data-mining,1e498f5
 statistical-and-mathematical-methods-for-ai,b8b751d
diff --git a/fundamentals-of-ai-and-kr/module3/main.pdf b/fundamentals-of-ai-and-kr/module3/main.pdf
index ebae589..4026e1a 100644
Binary files a/fundamentals-of-ai-and-kr/module3/main.pdf and b/fundamentals-of-ai-and-kr/module3/main.pdf differ