diff --git a/docs/Project.toml b/docs/Project.toml
index f42ac387..576f13af 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -32,7 +32,7 @@ JuMP = "1"
 Markdown = "1"
 NLPModels = "0.21"
 NLPModelsIpopt = "0.11"
-OptimalControl = "1"
+OptimalControl = "2"
 Plots = "1"
 Printf = "1"
 TOML = "1"