diff --git a/docs/Project.toml b/docs/Project.toml
index f42ac387..bcc7048f 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -30,7 +30,7 @@ Ipopt = "1"
 JSON = "1"
 JuMP = "1"
 Markdown = "1"
-NLPModels = "0.21"
+NLPModels = "0.22"
 NLPModelsIpopt = "0.11"
 OptimalControl = "1"
 Plots = "1"