diff --git a/vis/optional_requirements.txt b/vis/optional_requirements.txt
old mode 100755
new mode 100644
index e4534cef..a2b38408
--- a/vis/optional_requirements.txt
+++ b/vis/optional_requirements.txt
@@ -14,7 +14,7 @@ openpyxl>=1.6.2
 pylint
 
 # Plotting tools.
-scipy==0.16.0
+scipy==1.10.0
 matplotlib==1.5.1
 
 # For testing, coverage, stuff like that.