diff --git a/Project.toml b/Project.toml
index 035bb0f..f5d270c 100644
--- a/Project.toml
+++ b/Project.toml
@@ -20,8 +20,8 @@ DataStructures = "0.19"
 DiffEqBase = "7"
 FunctionWrappers = "1.1.3"
 LinearAlgebra = "1"
-ModelingToolkit = "9, 10, 11"
-NonlinearSolve = "3, 4"
+ModelingToolkit = "11.22"
+NonlinearSolve = "4"
 ODEInterface = "0.5.2"
 ODEProblemLibrary = "1"
 SafeTestsets = "0.0.1, 0.1"