diff --git a/requirements.txt b/requirements.txt
index fd16db6..d09a022 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ conda==4.5.11
 conda-build==3.16.3
 constantly==15.1.0
 contextlib2==0.5.5
-cryptography==2.3.1
+cryptography==3.2
 cycler==0.10.0
 Cython==0.29
 cytoolz==0.9.0.1