diff --git a/Project.toml b/Project.toml
index b667f554..aa4705fb 100644
--- a/Project.toml
+++ b/Project.toml
@@ -60,7 +60,7 @@ MacroTools = "0.5"
 Memoize = "0.4"
 ModelingToolkit = "8, 9"
 NNlib = "0.8, 0.9"
-Optimisers = "0.2, 0.3"
+Optimisers = "0.2, 0.3, 0.4"
 Optimization = "3"
 OptimizationOptimisers = "0.1, 0.2"
 PackageExtensionCompat = "1"