diff --git a/requirements.txt b/requirements.txt
index 102a0cd..341472e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,6 @@ transformers==3.0.2
 tqdm==4.32.1
 joblib==0.16.0
 youtube-dl==2020.7.28
-nltk==3.4.5
+nltk==3.6.6
 h5py==2.9.0
 pandas==0.24.2
\ No newline at end of file