diff --git a/pyproject.toml b/pyproject.toml
index 466d3d7..e58b8da 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -76,6 +76,7 @@ test = [
     "pylegendtestdata",
     "pytest>=6.0",
     "pytest-cov",
+    "dbetto",
 ]
 
 [project.scripts]