diff --git a/Project.toml b/Project.toml
index 583ecdf..7a7aebf 100644
--- a/Project.toml
+++ b/Project.toml
@@ -36,6 +36,7 @@ HyperelasticsDifferentiationInterfaceExt = "DifferentiationInterface"
 HyperelasticsOptimizationExt = "Optimization"
 
 [compat]
+LossFunctions = "0.11"
 Statistics = "1"
 Unitful = "1"
 DocStringExtensions = "0.9"