diff --git a/requirements.txt b/requirements.txt
index bc3a2cd..a0305ec 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ decorator==4.4.2
 kiwisolver==1.2.0
 matplotlib==3.3.0
 networkx==2.4
-numpy==1.19.0
+numpy==1.22.0
 Pillow==7.2.0
 pkg-resources==0.0.0
 pyparsing==2.4.7