diff --git a/requirements.txt b/requirements.txt
index c5f9b26..dcc20ca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ asn1crypto==0.24.0
 certifi==2019.6.16
 cffi==1.12.3
 chardet==3.0.4
-cryptography==2.7
+cryptography==3.2
 future==0.17.1
 idna==2.8
 pycparser==2.19