diff --git a/requirements.txt b/requirements.txt
index 79f548c22..e42cf5aca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,3 +9,4 @@ scipy
 scikit-learn==0.23.2
 gast==0.3.3
 faiss-cpu==1.7.1.post2
+bcolz==1.2.1
\ No newline at end of file