diff --git a/test/Project.toml b/test/Project.toml
index 20a42acb..5040fc5e 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -10,7 +10,7 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 [compat]
 CTDirect = "0.12"
 NLPModelsIpopt = "0.10"
-NonlinearSolve = "3.14"
+NonlinearSolve = "4"
 OrdinaryDiffEq = "6.88"
 SciMLBase = "2.48"
 julia = "1.10"