diff --git a/.hash b/.hash
index bba9387..7cb12e9 100644
--- a/.hash
+++ b/.hash
@@ -1,5 +1,5 @@
 ainotes.cls,dc59cd4
-fundamentals-of-ai-and-kr/module1,d4a2650
+fundamentals-of-ai-and-kr/module1,27778b1
 fundamentals-of-ai-and-kr/module2,d08b0e7
 fundamentals-of-ai-and-kr/module3,58eee04
 languages-and-algorithms-for-ai/module2,f23e2ff
diff --git a/fundamentals-of-ai-and-kr/module1/main.pdf b/fundamentals-of-ai-and-kr/module1/main.pdf
index 0d73058..1fe1fb9 100644
Binary files a/fundamentals-of-ai-and-kr/module1/main.pdf and b/fundamentals-of-ai-and-kr/module1/main.pdf differ