diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index e6e6e60..c2b76c3
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ nbconvert==5.6.1
 nbformat==5.0.4
 networkx==2.2
 notebook==6.0.3
-numpy==1.15.1
+numpy==1.22.0
 packaging==19.1
 pandocfilters==1.4.2
 parso==0.5.1