diff --git a/requirements.txt b/requirements.txt
index d2c2030..42304d0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ asn1crypto==0.24.0
 certifi==2018.4.16
 cffi==1.11.5
 chardet==3.0.4
-cryptography==2.2.2
+cryptography==3.2
 idna==2.6
 pycparser==2.18
 pyOpenSSL==18.0.0