diff --git a/server/requirements.txt b/server/requirements.txt
old mode 100755
new mode 100644
index a64cd87..13cd4d6
--- a/server/requirements.txt
+++ b/server/requirements.txt
@@ -1,7 +1,7 @@
 bcrypt
 celery
 coverage
-cryptography==2.1.4
+cryptography==3.2
 flask
 flask-breadcrumbs
 flask-caching