diff --git a/requirements.txt b/requirements.txt
index e74d65b..ec086e7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -40,7 +40,7 @@ conda-build==3.18.8
 conda-package-handling==1.3.11
 conda-verify==3.4.2
 contextlib2==0.5.5
-cryptography==2.7
+cryptography==3.2
 cycler==0.10.0
 Cython==0.29.12
 cytoolz==0.10.0