diff --git a/requirements.txt b/requirements.txt
index d418f93..7a6c4f9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,7 +22,7 @@ channels==1.1.6
 chardet==3.0.4
 constantly==15.1.0
 coverage==4.4.1
-cryptography==1.9
+cryptography==3.2
 daemon==1.1
 daphne==1.3.0
 defusedxml==0.5.0