diff --git a/pytket/docs/pyproject.toml b/pytket/docs/pyproject.toml
index b84d524355..6fe1081695 100644
--- a/pytket/docs/pyproject.toml
+++ b/pytket/docs/pyproject.toml
@@ -14,6 +14,7 @@ jupyter-sphinx = "^0.5.3"
 ipykernel = "^6.29.4"
 enum-tools = {extras = ["sphinx"], version = "^0.12.0"}
 furo = "^2024.5.6"
+pytket = "^1.31.0"
 
 [build-system]
 requires = ["poetry-core"]