diff --git a/requirements.txt b/requirements.txt
index bc75da4a..777bdace 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 Django==1.11.4
-nltk==3.2.4
+nltk==3.9.3
 numpy==1.14.5
 praw==5.0.1
 requests==2.18.3