diff --git a/requirements.txt b/requirements.txt
index 2d0bbc8..db3b9da 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ cffi==1.11.5
 chardet==3.0.4
 colorama==0.3.6
 coverage==4.5.4
-cryptography==2.3.1
+cryptography==3.2
 docutils==0.15.2
 enum34==1.1.6
 flake8==3.7.8