diff --git a/requirements.txt b/requirements.txt
index ff79d98..ddc8552 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ amqp==2.4.2
 celery==4.2.1
 chardet==3.0.4
 cloudpickle==1.3.0
-cryptography==2.1.4
+cryptography==3.3.2
 cycler==0.10.0
 decorator==4.4.2
 Distance==0.1.3