diff --git a/docs/Project.toml b/docs/Project.toml
index 5efa7cc..c63a163 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -26,7 +26,7 @@ DocumenterInterLinks = "1"
 ForwardDiff = "0.10, 1"
 LinearAlgebra = "1"
 MINPACK = "1"
-MadNLP = "0.8"
+MadNLP = "0.9"
 NLPModels = "0.21"
 NLPModelsIpopt = "0.11"
 NonlinearSolve = "4"