diff --git a/requirements.txt b/requirements.txt
index d9be9bc..d5b09a9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-numpy==1.11.1
+numpy==1.21.0
 pandas==0.18.1
 python-dateutil==2.5.3
 pytz==2016.6.1