diff --git a/requirements.txt b/requirements.txt
index 5c88e20..ad2ea12 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -40,7 +40,7 @@ PyMuPDF==1.14.20
 
 #encryption and security
 certifi==2018.4.16
-cryptography==2.3.1
+cryptography==3.2
 itsdangerous==0.24
 MarkupSafe==1.0
 passlib==1.7.1