diff --git a/Project.toml b/Project.toml
index 2a1e8c8..056960d 100644
--- a/Project.toml
+++ b/Project.toml
@@ -17,7 +17,7 @@ DocStringExtensions = "0.9.5"
 IterativeSolvers = "0.9.4"
 LinearMaps = "3.11.4"
 MLJModelInterface = "1.12.0"
-Optim = "1.13.2"
+Optim = "1.13.2, 2.2"
 Parameters = "0.12, 0.13"
 TOML = "1.0.3"
 julia = "1.10"