diff --git a/requirements.txt b/requirements.txt
index 13ac8cd..9b65902 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ cffi==1.14.0
 channels==0.17.2
 Click==7.0
 constantly==15.1.0
-cryptography==2.8
+cryptography==3.2
 daphne==0.15.0
 dask==0.11.1
 decorator==4.0.10