diff --git a/requirements.txt b/requirements.txt
index d5a76ab..1b59142 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 Django==1.8
 MySQL-python==1.2.5
-nltk==3.0.2
+nltk==3.4.5
 numpy==1.9.2
 oauthlib==0.7.2
 requests==2.6.0