diff --git a/app/requirements.txt b/app/requirements.txt
index f00788f..a2f17f0 100644
--- a/app/requirements.txt
+++ b/app/requirements.txt
@@ -8,7 +8,7 @@ chardet==3.0.4
 Click==7.0
 colorclass==2.2.0
 CouchDB==1.2
-cryptography==2.7
+cryptography==3.2
 docopt==0.6.2
 dominate==2.4.0
 Flask==1.1.1