diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 35ed057..3a0e2f4
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,4 +6,4 @@ scikit-learn==0.21.3
 xlrd==1.2.0
 pandas==0.25.1
 numpy==1.17.2
-flask==1.1.2
+flask==2.3.2