diff --git a/requirements.txt b/requirements.txt
index d3b8a04..b34b888 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ certifi==2018.10.15
 cffi==1.11.5
 chardet==3.0.4
 cloudpickle==0.6.1
-cryptography==2.3.1
+cryptography==3.2
 cycler==0.10.0
 dask==0.19.4
 decorator==4.3.0