diff --git a/requirements.txt b/requirements.txt
index 302c33f..815f8df 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ cffi==1.11.5
 chardet==3.0.4
 click==6.7
 colorlog==3.1.4
-cryptography==2.3.1
+cryptography==3.2
 daemonize==2.4.7
 dnspython==1.15.0
 dnspython3==1.15.0