diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index c664601..5c56fa9
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,7 +35,7 @@ cheroot==8.3.0
 redis
 cherrypy_cors==1.6
 coloredlogs==14.0
-cryptography==2.9.2
+cryptography==3.2
 dj-database-url==0.5.0
 django-celery-beat
 django-celery-results==1.2.1