diff --git a/Project.toml b/Project.toml
index 8079cde..ea6dff8 100644
--- a/Project.toml
+++ b/Project.toml
@@ -28,6 +28,7 @@ Distributions = "0.25"
 ForwardDiff = "0.10"
 MacroTools = "0.5"
 NLsolve = "4"
+Optimization = "3"
 NonlinearSolve = "3"
 OptimizationOptimJL = "0.1"
 OrderedCollections = "1"