diff --git a/sample-tracking-api/requirements.txt b/sample-tracking-api/requirements.txt
old mode 100755
new mode 100644
index f7b0503..cc59acc
--- a/sample-tracking-api/requirements.txt
+++ b/sample-tracking-api/requirements.txt
@@ -10,7 +10,7 @@ certifi==2020.6.20
 cffi==1.14.0
 chardet==3.0.4
 click==7.1.2
-cryptography==2.9.2
+cryptography==39.0.1
 et-xmlfile==1.0.1
 Flask==1.1.2
 Flask-Cors==3.0.8