diff --git a/docs/Project.toml b/docs/Project.toml
index 9fb8f7c..97d57c5 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -30,7 +30,7 @@ IntegralsCuba = "0.3"
 KernelDensity = "0.6"
 MCMCChains = "6"
 Optimization = "3"
-OptimizationMOI = "0.1, 0.2, 0.3"
+OptimizationMOI = "0.1, 0.2, 0.3, 0.4"
 OptimizationNLopt = "0.1, 0.2"
 OrdinaryDiffEq = "6"
 Plots = "1"