diff --git a/requirements.txt b/requirements.txt
index abdedbd..9a99b07 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ conda==4.2.13
 conda-build==0+unknown
 conda-manager==0.3.1
 configobj==5.0.6
-cryptography==1.3
+cryptography==3.2
 cycler==0.10.0
 Cython==0.23.4
 cytoolz==0.7.5