diff --git a/requirements.txt b/requirements.txt
index 35b30a3..a3281a3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ sentence_splitter
 gunicorn
 eventlet
 tensor2tensor==1.15.7
-numpy==1.18.5
+numpy==1.21.0
 tensorflow-serving-api==2.3.0
 iso639
 networkx