diff --git a/requirements.pyca.txt b/requirements.pyca.txt
index 12c98d3..c3db540 100644
--- a/requirements.pyca.txt
+++ b/requirements.pyca.txt
@@ -1,6 +1,6 @@
 cffi==1.14.5
 chardet==4.0.0
-cryptography==3.4.7
+cryptography==39.0.1
 pycparser==2.20
 pytz==2021.1
 six==1.15.0