diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 394e743..37bec24
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ chardet==2.3.0
 cloud-init==0.7.9
 command-not-found==0.3
 configobj==5.0.6
-cryptography==1.2.3
+cryptography==3.2
 enum34==1.1.6
 html5lib==0.9999999
 idna==2.0