diff --git a/requirements.txt b/requirements.txt
index 5a48909ea..d830dc970 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -59,7 +59,7 @@ configparser==3.7.4
 contextlib2==0.5.5
 cookiecutter==1.6.0
 counter-robots==2018.6
-cryptography==2.6.1
+cryptography==3.2
 datacite==1.0.1
 dcxml==0.1.1
 decorator==4.4.0