diff --git a/ArchMd/requirements.txt b/ArchMd/requirements.txt
old mode 100755
new mode 100644
index 2cd457c..4a629b5
--- a/ArchMd/requirements.txt
+++ b/ArchMd/requirements.txt
@@ -12,7 +12,7 @@ celery==4.3.0
 certifi==2019.3.9
 cffi==1.12.3
 chardet==3.0.4
-cryptography==2.6.1
+cryptography==3.2
 decorator==4.4.0
 defusedxml==0.5.0
 diff-match-patch==20181111