diff --git a/pyproject.toml b/pyproject.toml
index 410c685..be27b70 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,6 +20,7 @@ dependencies = [
     "matplotlib",
     "numpy==1.26.4",
     "pandas",
+    "plotly",
     "pytest",
     "pytest-cov",
     "pytest-subtests",