diff --git a/requirements.txt b/requirements.txt
index 3536074..4a31b61 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ docutils==0.17
 kiwisolver==1.3.1
 matplotlib==3.4.1
 networkx==2.5.1
-numpy==1.20.2
+numpy==1.22.0
 Pillow==8.2.0
 PuLP==2.4
 pyparsing==2.4.7