diff --git a/docs/Project.toml b/docs/Project.toml
index 196dc6f..d6ccf98 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -6,3 +6,4 @@ ScientificTypes = "321657f4-b219-11e9-178b-2701a2544e81"
 
 [compat]
 Documenter = "1"
+OpenML = "0.3.3"