diff --git a/requirements.txt b/requirements.txt
index e044ecd..f95e487 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 scipy==1.3.1
 matplotlib==3.0.2
 networkx==2.5
-numpy==1.15.4
+numpy==1.22.0
 msgpack==1.0.2