diff --git a/aes_dl/requirements.txt b/aes_dl/requirements.txt
index 69a1177..6db23b8 100644
--- a/aes_dl/requirements.txt
+++ b/aes_dl/requirements.txt
@@ -4,7 +4,7 @@ cffi==1.13.0
 chardet==3.0.4
 conda==4.7.12
 conda-package-handling==1.6.0
-cryptography==2.8
+cryptography==3.2
 idna==2.8
 pycosat==0.6.3
 pycparser==2.19