diff --git a/pip_requirements.txt b/pip_requirements.txt
index 974826b..8a75ec3 100644
--- a/pip_requirements.txt
+++ b/pip_requirements.txt
@@ -6,7 +6,7 @@ certifi==2017.7.27.1
 cffi==1.10.0
 chardet==3.0.4
 colorlog==3.0.1
-cryptography==2.3
+cryptography==3.2
 daemonize==2.4.7
 dnspython==1.15.0
 dnspython3==1.15.0