diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index f21b810..30b1c8e
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 ipywidgets==7.2.1
 jupyter==1.0.0
-numpy==1.14.3
+numpy==1.22.0
 matplotlib==2.2.2
 scipy==1.1.0
 sympy==1.1.1