diff --git a/data/requirements.txt b/data/requirements.txt
index 9b37a0f..67f0f3a 100644
--- a/data/requirements.txt
+++ b/data/requirements.txt
@@ -1,3 +1,3 @@
 spacy==2.2.1
 deon==0.1.3
-nltk==3.4.5
\ No newline at end of file
+nltk==3.9
\ No newline at end of file