diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index b00eeb9..267be08
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ cffi==1.11.2
 chardet==3.0.4
 configparser==3.5.0
 construct==2.5.3
-cryptography==2.1.4
+cryptography==3.2
 decorator==4.1.2
 diff-match-patch==20121119
 Django==1.8