diff --git a/requirements.txt b/requirements.txt
index 49ea94d..95c4c7a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,7 +28,7 @@ conda-build==3.1.0
 conda-verify==2.0.0
 contextlib2==0.5.5
 coverage==4.4.2
-cryptography==3.2
+cryptography==3.3.2
 cycler==0.10.0
 Cython==0.27.3
 cytoolz==0.8.2