diff --git a/docs/requirements.txt b/docs/requirements.txt
old mode 100755
new mode 100644
index 3221456e2..47f048da3
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,4 +1,4 @@
-numpy==1.15.1
+numpy==1.22.0
 Pillow==5.3.0
 scipy==1.1.0
 tensorflow-gpu==1.11.0