diff --git a/requirements.txt b/requirements.txt
index f9f1e47..bf39ac1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ djangorestframework-xml
 djangorestframework-jsonp
 icalendar==3.6.2
 setuptools==65.5.1
-cryptography==3.3.2
+cryptography==39.0.1
 requests[security]
 pysolr==3.2.0
 django-haystack==3.1.1