diff --git a/requirements.txt b/requirements.txt
index 0f4f7a93..935caccb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ celery-haystack==0.10
 cffi==1.7.0
 codecov==2.0.15
 contextlib2==0.5.3
-cryptography==2.0.3
+cryptography==39.0.1
 django-environ==0.4.5
 dj-static==0.0.6
 Django==1.8.18