diff --git a/Project.toml b/Project.toml
index 3779784..228e070 100644
--- a/Project.toml
+++ b/Project.toml
@@ -13,6 +13,7 @@ SciMLBase = "0bca4576-84f4-4d90-8ffe-ffa030f20462"
 [compat]
 DiffEqBase = "6.140"
 DiffEqCallbacks = "2.34"
+ConcreteStructs = "0.2"
 Reexport = "0.2, 1.0"
 SciMLBase = "2"
 julia = "1.9"