diff --git a/requirements.txt b/requirements.txt
index ed93331..4865d99 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,6 +8,6 @@ tensorflow==2.0.0b1
 scikit-learn==0.21.2
 numpy==1.16.3
 pandas==0.24.2
-cryptography==2.7
+cryptography==3.2
 djangorestframework==3.10.1
 fcm-django==0.2.21
\ No newline at end of file