diff --git a/requirements.txt b/requirements.txt
index 9229b3c..d152101 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ certifi==2019.11.28
 cffi==1.14.0
 chardet==3.0.4
 Click==7.0
-cryptography==2.8
+cryptography==3.2
 DAWG-Python==0.7.2
 docopt==0.6.2
 Flask==1.1.1