diff --git a/requirements.txt b/requirements.txt
index 9a2224f..abce3f3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ click-plugins==1.1.1
 cligj==0.5.0
 cloudpickle==1.2.2
 configobj==5.0.6
-cryptography==2.8
+cryptography==3.2
 cycler==0.10.0
 cytoolz==0.10.1
 dask==2.9.1