diff --git a/docs/Project.toml b/docs/Project.toml
index 5556cd9..593f6eb 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -1,3 +1,4 @@
 [deps]
+DataFrames = "a93c6f00-e57d-5684-b7b6-d8193f3e46c0"
 Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
 ForestMensuration = "8fa9ba82-4654-4ff3-8d17-47720d346ae3"