diff --git a/docs/sphinx_requirements.txt b/docs/sphinx_requirements.txt
old mode 100755
new mode 100644
index 7f8a503509..9d4c731b9a
--- a/docs/sphinx_requirements.txt
+++ b/docs/sphinx_requirements.txt
@@ -23,3 +23,4 @@ Keras==2.2.4
 pywin32 ; sys_platform == "win32"
 pynvx==0.0.4 ; sys_platform == "darwin"
 tensorflow==1.13.1
+setuptools>=65.5.1 # not directly required, pinned by Snyk to avoid a vulnerability