diff --git a/lib/OptimizationMOI/Project.toml b/lib/OptimizationMOI/Project.toml
index 58ef097b3..dc222ed7f 100644
--- a/lib/OptimizationMOI/Project.toml
+++ b/lib/OptimizationMOI/Project.toml
@@ -22,7 +22,7 @@ Juniper = "0.9"
 MathOptInterface = "1"
 ModelingToolkit = "9"
 NLopt = "1"
-Optimization = "3.21"
+Optimization = "3.21, 4"
 Reexport = "1.2"
 SciMLStructures = "1"
 SparseArrays = "1.6"