diff --git a/requirements.txt b/requirements.txt
index 0b1a547..43ef2b8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 PCS==0.1
 redis==2.10.6
-numpy==1.11.3
+numpy==1.21.0
 pandas==0.19.2