diff --git a/pyproject.toml b/pyproject.toml
index ad11f40b..f1089e63 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -57,6 +57,8 @@ optional-dependencies.dev = [
   "pylint>=3.3.1",
   "pylint-django",
   "pysankeybeta~=1.3.0",
+  "pytest",
+  "pytest-django",
   "python-coveralls",
 ]
 optional-dependencies.sankey = [