diff --git a/Project.toml b/Project.toml
index 5be40ef..9dfd094 100644
--- a/Project.toml
+++ b/Project.toml
@@ -30,6 +30,7 @@ CairoMakie = "0.11, 0.12"
 Infiltrator = "1"
 JLD2 = "0.4"
 Muninn = "0.3"
+Optimization = "3"
 OptimizationOptimJL = "0.3"
 OrdinaryDiffEq = "6"
 PlotThemes = "3"