diff --git a/requirements.txt b/requirements.txt
index 12be9fe..5999e74 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ conda==4.5.11
 conda-build==3.15.1
 constantly==15.1.0
 contextlib2==0.5.5
-cryptography==2.3.1
+cryptography==3.2
 cycler==0.10.0
 Cython==0.28.5
 cytoolz==0.9.0.1