diff --git a/test/downstream/Project.toml b/test/downstream/Project.toml
index 6c3d0161a..b036b0b12 100644
--- a/test/downstream/Project.toml
+++ b/test/downstream/Project.toml
@@ -37,6 +37,7 @@ ModelingToolkit = "9.52"
 ModelingToolkitStandardLibrary = "2.7"
 NonlinearSolve = "2, 3, 4"
 Optimization = "4"
+OptimizationOptimJL = "0.4"
 OptimizationMOI = "0.5"
 OrdinaryDiffEq = "6.33"
 PartialFunctions = "1"