diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index d17da41..144d358
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 psycopg2_binary==2.8.3
 celery==4.3.0
-cryptography==2.7
+cryptography==3.2
 click==7.0
 Flask==1.1.1
 pytz==2019.2