diff --git a/requirements.txt b/requirements.txt
index b0861c2..c389c0d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 cffi==1.13.2
-cryptography==2.8
+cryptography==39.0.1
 pika==1.1.0
 pycparser==2.19
 six==1.14.0