diff --git a/.hash b/.hash
index 8fbc8d3..2f84266 100644
--- a/.hash
+++ b/.hash
@@ -2,6 +2,6 @@ ainotes.cls,4b2f613
 fundamentals-of-ai-and-kr/module1,1677e27
 fundamentals-of-ai-and-kr/module2,9622aab
 fundamentals-of-ai-and-kr/module3,1677e27
-languages-and-algorithms-for-ai/module2,1677e27
+languages-and-algorithms-for-ai/module2,6a33527
 machine-learning-and-data-mining,1677e27
 statistical-and-mathematical-methods-for-ai,1677e27
diff --git a/languages-and-algorithms-for-ai/module2/laai2.pdf b/languages-and-algorithms-for-ai/module2/laai2.pdf
index 386b76a..ed6db9f 100644
Binary files a/languages-and-algorithms-for-ai/module2/laai2.pdf and b/languages-and-algorithms-for-ai/module2/laai2.pdf differ