diff --git a/python-requirements.txt b/python-requirements.txt
index 47ead47b5..583de9499 100644
--- a/python-requirements.txt
+++ b/python-requirements.txt
@@ -8,6 +8,8 @@ editorconfig-checker==2.3.51
 flake8
 gitpython
 hjson
+humanize
+json5
 jsonref
 jsonschema
 mako