diff --git a/requirements.txt b/requirements.txt
index 86eccac..84843d7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 matplotlib==1.5.1
-numpy==1.11.0
+numpy==1.21.0
 pandas==0.18.0
 scikit-learn==0.17.1