diff --git a/requirements.txt b/requirements.txt
index 58210a2..c415e80 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 certifi==2018.1.18
 cffi==1.13.2
 chardet==3.0.4
-cryptography==2.8
+cryptography==3.2
 future==0.16.0
 idna==2.6
 pycparser==2.19