diff --git a/requirements.txt b/requirements.txt
index c1b17ac..686ac2a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ chardet==3.0.4
 conda==4.8.0
 conda-pack==0.4.0
 conda-package-handling==1.6.0
-cryptography==2.8
+cryptography==3.2
 idna==2.8
 pycosat==0.6.3
 pycparser==2.19