diff --git a/requirements.txt b/requirements.txt
index 996ccf5..f58ba8b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ lxml==3.8.0
 MarkupSafe==1.0
 mccabe==0.6.1
 multidict==3.1.3
-numpy==1.13.1
+numpy==1.21.0
 pandas==0.20.3
 pycodestyle==2.3.1
 pyflakes==1.5.0