diff --git a/requirements.txt b/requirements.txt
index a249806..8e31969 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,7 +28,7 @@ conda==4.3.30
 conda-build==3.0.27
 conda-verify==2.0.0
 contextlib2==0.5.5
-cryptography==2.0.3
+cryptography==3.2
 cycler==0.10.0
 Cython==0.26.1
 cytoolz==0.8.2