diff --git a/test/downstream/Project.toml b/test/downstream/Project.toml
index 297892d01..c6b4d0058 100644
--- a/test/downstream/Project.toml
+++ b/test/downstream/Project.toml
@@ -39,7 +39,7 @@ JumpProcesses = "9.10"
 ModelingToolkit = "10.0.4"
 ModelingToolkitStandardLibrary = "2.7"
 NonlinearSolve = "2, 3, 4"
-Optimization = "4"
+Optimization = "4, 5"
 OptimizationMOI = "0.5"
 OptimizationOptimJL = "0.4"
 OrdinaryDiffEq = "6.33"