diff --git a/requirements.txt b/requirements.txt
index bca7a76..727df3c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ cloudpickle==0.5.3
 clyent==1.2.2
 colorama==0.3.9
 contextlib2==0.5.5
-cryptography==2.7
+cryptography==3.2
 cycler==0.10.0
 cymem==2.0.2
 Cython==0.28.2