diff --git a/pyproject.toml b/pyproject.toml
index 687d9269b1ae5ecbfc913f9f27e0ae9ac4d069ca..c3627c14e0ec27d90c1a96156e45f81847cce3d9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,6 +29,7 @@ aliby-baby = "*"
 
 
 [tool.poetry.dev-dependencies]
+data-science-types = "^0.2.23"
 black = "^21.12b0"
 Sphinx = "^4.3.2"
 pytest = "^6.2.5"