diff --git a/requirements.txt b/requirements.txt
index d497532..02c9b4d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ idna==2.5
 itsdangerous==0.24
 Jinja2==2.9.6
 MarkupSafe==1.0
-numpy==1.13.1
+numpy==1.21.0
 pandas==0.20.3
 py==1.4.34
 pytest==3.2.0