diff --git a/development.txt b/development.txt
index 24a995026..84be0bed3 100644
--- a/development.txt
+++ b/development.txt
@@ -6,4 +6,4 @@ pep8	     # https://github.com/jcrocholl/pep8
 pyflakes	 # https://launchpad.net/pyflakes
 coveralls	 # https://coveralls.io/
 ntc_templates # user needs to explicitly install this
-cryptography==3.2
+cryptography