diff --git a/Project.toml b/Project.toml
index 3af5ef1..42dcce0 100644
--- a/Project.toml
+++ b/Project.toml
@@ -16,6 +16,7 @@ Suppressor = "fd094767-a336-5f1f-9728-57cf17d0bbfb"
 TaylorDiff = "b36ab563-344f-407b-a36a-4f200bebf99c"
 
 [compat]
+ModelingToolkit = "9"
 OrdinaryDiffEq = "6.80.1"
 TaylorDiff = "=0.2.1"
 julia = "1.10"