diff --git a/.hash b/.hash
index 0b3fdad..349a01d 100644
--- a/.hash
+++ b/.hash
@@ -1,5 +1,5 @@
 ainotes.cls,dc59cd4
-fundamentals-of-ai-and-kr/module1,e7fdd58
+fundamentals-of-ai-and-kr/module1,8690306
 fundamentals-of-ai-and-kr/module2,2ef29c7
 fundamentals-of-ai-and-kr/module3,3836519
 languages-and-algorithms-for-ai/module2,0dff0b4
diff --git a/fundamentals-of-ai-and-kr/module1/main.pdf b/fundamentals-of-ai-and-kr/module1/main.pdf
index eb608da..a445010 100644
Binary files a/fundamentals-of-ai-and-kr/module1/main.pdf and b/fundamentals-of-ai-and-kr/module1/main.pdf differ