diff --git a/Project.toml b/Project.toml
index 0124164..135ba0f 100644
--- a/Project.toml
+++ b/Project.toml
@@ -31,7 +31,7 @@ LinearAlgebra = "1.7, 1.10"
 MLJBase = "1"
 MLJModelInterface = "1.8.0"
 MLUtils = "0.4"
-Optimisers = "0.2, 0.3"
+Optimisers = "0.2, 0.3, 0.4"
 Random = "1.9, 1.10"
 Statistics = "1"
 Tables = "1.10.1"