diff --git a/pyproject.toml b/pyproject.toml
index bb93ba9..9b1742e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,6 +32,7 @@
 python-on-whales = "^0.52.0"
 Jinja2 = "^3.1.2"
 jinja2-base64-filters = "^0.1.4"
+molecule = "^4.0.1"
 
 [build-system]
 requires = ["poetry-core"]