diff --git a/requirements.txt b/requirements.txt
index d93174b..4e06af7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 asn1crypto==0.24.0
 certifi==2018.8.24
 cffi==1.11.5
-cryptography==2.3.1
+cryptography==3.2
 future==0.16.0
 idna==2.7
 pycparser==2.18