diff --git a/.hash b/.hash
index 2421b16..88246ed 100644
--- a/.hash
+++ b/.hash
@@ -1,5 +1,5 @@
 ainotes.cls,dc59cd4
-fundamentals-of-ai-and-kr/module1,8690306
+fundamentals-of-ai-and-kr/module1,5bd52e4
 fundamentals-of-ai-and-kr/module2,3763967
 fundamentals-of-ai-and-kr/module3,58eee04
 languages-and-algorithms-for-ai/module2,71cd9e1
diff --git a/fundamentals-of-ai-and-kr/module1/main.pdf b/fundamentals-of-ai-and-kr/module1/main.pdf
index a445010..8fd2189 100644
Binary files a/fundamentals-of-ai-and-kr/module1/main.pdf and b/fundamentals-of-ai-and-kr/module1/main.pdf differ