diff --git a/requirements.txt b/requirements.txt
index 384e664..9ddbe11 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ chardet==3.0.4
 cloudpickle==0.5.6
 clyent==1.2.2
 constantly==15.1.0
-cryptography==2.3.1
+cryptography==3.2
 cycler==0.10.0
 dask==0.19.3
 decorator==4.3.0