1 files changed, 1 insertions, 0 deletions

diff --git a/Pipfile b/Pipfile
index 36cacf3..0cb50f2 100644
--- a/Pipfile
+++ b/Pipfile
@@ -12,6 +12,7 @@ surt = "*"
 tldextract = "*"
 pycountry = "*"
 pytest = "*"
+python-stdnum = "*"
 
 [requires]
 python_version = "3.5"