diff --git a/requirements.txt b/requirements.txt
index 42ee599..2dbbcbb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ Click==7.0
 codecov==2.0.15
 coverage==4.5.1
 coveralls==1.5.1
-cryptography==2.3.1
+cryptography==3.2
 docopt==0.6.2
 Flask==1.0.2
 Flask-Cors==3.0.7