diff --git a/backend/requirement.txt b/backend/requirement.txt
index c85eadef..3837dd8a 100644
--- a/backend/requirement.txt
+++ b/backend/requirement.txt
@@ -30,7 +30,7 @@ contextlib2==0.6.0.post1
 coreapi==2.3.3
 coreschema==0.0.4
 crayons==0.3.1
-cryptography==2.8
+cryptography==3.3.2
 cupshelpers==1.0
 daphne==3.0.2
 dbus-python==1.2.16