diff --git a/moodtracker/requirements.txt b/moodtracker/requirements.txt
old mode 100755
new mode 100644
index 203bdd1..1c62e3d
--- a/moodtracker/requirements.txt
+++ b/moodtracker/requirements.txt
@@ -6,7 +6,7 @@ celery==4.1.0
 certifi==2017.7.27.1
 cffi==1.11.2
 chardet==3.0.4
-cryptography==2.1.3
+cryptography==3.2
 Django==1.11.6
 django-celery-beat==1.1.0
 django-celery-results==1.0.1