diff --git a/requirements.txt b/requirements.txt
index 89b220e..d1fbb5b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ chardet==3.0.4
 Click==7.0
 cloudpickle==0.6.1
 colorama==0.3.9
-cryptography==2.3.1
+cryptography==3.2
 cycler==0.10.0
 Cython==0.29.1
 dask==1.0.0