diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 3b2adbe..fe9d714
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ cffi==1.11.5
 colorama==0.3.9
 configparser==3.5.0
 coverage==3.7.1
-cryptography==2.2.2
+cryptography==3.2
 cycler==0.10.0
 Cython==0.25.2
 Django==1.8.15