diff --git a/.hash b/.hash
index 6c62797..c619c84 100644
--- a/.hash
+++ b/.hash
@@ -17,4 +17,4 @@ year2/artificial-intelligence-in-industry,8474da7
 year2/big-data-analytics-and-text-mining/module1,368d88d
 year2/big-data-analytics-and-text-mining/module2,368d88d
 year2/machine-learning-for-computer-vision,c10f58c
-year2/natural-language-processing,916fcce
+year2/natural-language-processing,533fb70
diff --git a/year2/natural-language-processing/nlp.pdf b/year2/natural-language-processing/nlp.pdf
index 410b1fd..6c6cd20 100644
Binary files a/year2/natural-language-processing/nlp.pdf and b/year2/natural-language-processing/nlp.pdf differ