diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index e710b3c..8d38c73
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 matplotlib==2.2.2
 networkx==2.1
-numpy==1.14.3
+numpy==1.22.0
 pytest==3.6.0
 scipy==1.1.0