diff --git a/.hash b/.hash
index 85a64b2..2b781af 100644
--- a/.hash
+++ b/.hash
@@ -2,6 +2,6 @@ ainotes.cls,dc59cd4
 fundamentals-of-ai-and-kr/module1,27778b1
 fundamentals-of-ai-and-kr/module2,b30f1ac
 fundamentals-of-ai-and-kr/module3,0d20851
-languages-and-algorithms-for-ai/module2,f23e2ff
+languages-and-algorithms-for-ai/module2,a062cb0
 machine-learning-and-data-mining,0f3963d
 statistical-and-mathematical-methods-for-ai,b8b751d
diff --git a/languages-and-algorithms-for-ai/module2/main.pdf b/languages-and-algorithms-for-ai/module2/main.pdf
index c63ac11..efc548a 100644
Binary files a/languages-and-algorithms-for-ai/module2/main.pdf and b/languages-and-algorithms-for-ai/module2/main.pdf differ