diff --git a/requirements.txt b/requirements.txt
index ac37c02..7458edf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ anytree
 graphviz
 netifaces
 netfilterqueue
-cryptography==2.8
+cryptography==3.2
 paramiko
 codecov
 pytest-cov