diff --git a/requirements.txt b/requirements.txt
index 7bfc206..ca1ae76 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ conda==4.5.4
 conda-build==3.10.5
 conda-verify==2.0.0
 contextlib2==0.5.5
-cryptography==2.2.2
+cryptography==3.2
 cycler==0.10.0
 Cython==0.28.2
 cytoolz==0.9.0.1