diff --git a/Youtube/Dash apps/Value Investing/requirements.txt b/Youtube/Dash apps/Value Investing/requirements.txt
index 6533de8..5eee6b6 100644
--- a/Youtube/Dash apps/Value Investing/requirements.txt	
+++ b/Youtube/Dash apps/Value Investing/requirements.txt	
@@ -106,7 +106,7 @@ nbconvert==4.1.0
 nbformat==4.3.0
 ndg-httpsclient==0.4.2
 networkx==1.11
-nltk==3.1
+nltk==3.6.3
 nose==1.3.7
 notebook==4.1.0
 numba==0.23.1