diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 6b68dfd..36d001a
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 biopython==1.75
-numpy==1.17.4
+numpy==1.22.0
 pandas==0.25.3
 scipy==1.4.1
 python-igraph==0.8.2