diff --git a/requirements.txt b/requirements.txt
index 9c465e1..44adb4a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -38,7 +38,7 @@ conda-build==3.17.8
 conda-verify==3.1.1
 configparser==3.7.4
 contextlib2==0.5.5
-cryptography==2.6.1
+cryptography==3.2
 cycler==0.10.0
 Cython==0.29.7
 cytoolz==0.9.0.1