diff --git a/pyproject.toml b/pyproject.toml
index 74c37290b..c8f892919 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,6 +23,7 @@ readme = "README.rst"
 authors = [{ name = "Rolf Erik Lekang", email = "me@rolflekang.com" }]
 dependencies = [
   "click>=8,<9",
+  "click-option-group~=0.5",
   "gitpython>=3.0.8,<4",
   "requests>=2.25,<3",
   "jinja2>=3.1.2,<4",