diff --git a/docs/Project.toml b/docs/Project.toml
index c5a17ef65e..1b78c1dbef 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -69,7 +69,7 @@ ModelingToolkit = "9.69"
 NetworkLayout = "0.4"
 NonlinearSolve = "3.12, 4"
 Optim = "1.9"
-Optimization = "4"
+Optimization = "4, 5"
 OptimizationBBO = "0.4"
 OptimizationEvolutionary = "0.4"
 OptimizationNLopt = "0.3"