diff --git a/requirements.txt b/requirements.txt
index 73a98d2..81960a3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ cffi==1.11.5
 chardet==3.0.4
 click==6.7
 comtypes==1.1.7
-cryptography==2.3.1
+cryptography==3.2
 cycler==0.10.0
 dnspython==1.15.0
 docutils==0.14