diff --git a/test/downstream/Project.toml b/test/downstream/Project.toml
index 406fd3f4..b32afe76 100644
--- a/test/downstream/Project.toml
+++ b/test/downstream/Project.toml
@@ -7,7 +7,7 @@ Tracker = "9f7883ad-71c0-57eb-9f7f-b5c9e6d3789c"
 Unitful = "1986cc42-f94f-5a68-af5c-568840ba703d"
 
 [compat]
-ModelingToolkit = "8.33, 9"
+ModelingToolkit = "10"
 MonteCarloMeasurements = "1.1"
 OrdinaryDiffEq = "6.31"
 StaticArrays = "1"
diff --git a/test/downstream/symbol_indexing.jl b/test/downstream/symbol_indexing.jl
index 5d11fab0..68b26ac0 100644
--- a/test/downstream/symbol_indexing.jl
+++ b/test/downstream/symbol_indexing.jl
@@ -7,10 +7,9 @@ include("../testutils.jl")
 @variables x(t)
 @parameters τ
 @variables RHS(t)
-@mtkbuild fol_separate = ODESystem([RHS ~ (1 - x) / τ,
-        D(x) ~ RHS], t)
+@mtkcompile fol_separate = System([RHS ~ (1 - x) / τ, D(x) ~ RHS], t)
 
-prob = ODEProblem(fol_separate, [x => 0.0], (0.0, 10.0), [τ => 3.0])
+prob = ODEProblem(fol_separate, [x => 0.0, τ => 3.0], (0.0, 10.0))
 sol = solve(prob, Tsit5())
 
 sol_new = DiffEqArray(sol.u[1:10],
@@ -50,11 +49,10 @@ test_tables_interface(sol_new, [:timestamp, Symbol("x(t)")], hcat(sol_new[t], so
 # Two components
 @variables y(t)
 @parameters α β γ δ
-@mtkbuild lv = ODESystem([D(x) ~ α * x - β * x * y,
+@mtkcompile lv = System([D(x) ~ α * x - β * x * y,
         D(y) ~ δ * x * y - γ * x * y], t)
 
-prob = ODEProblem(lv, [x => 1.0, y => 1.0], (0.0, 10.0),
-    [α => 1.5, β => 1.0, γ => 3.0, δ => 1.0])
+prob = ODEProblem(lv, [x => 1.0, y => 1.0, α => 1.5, β => 1.0, γ => 3.0, δ => 1.0], (0.0, 10.0))
 sol = solve(prob, Tsit5())
 
 ts = 0:0.5:10
@@ -69,7 +67,7 @@ sts = @variables x(t)[1:3]=[1, 2, 3.0] y(t)=1.0
 ps = @parameters p[1:3] = [1, 2, 3]
 eqs = [collect(D.(x) .~ x)
        D(y) ~ norm(collect(x)) * y - x[1]]
-@mtkbuild sys = ODESystem(eqs, t, sts, ps)
+@mtkcompile sys = ODESystem(eqs, t, sts, ps)
 prob = ODEProblem(sys, [], (0, 1.0))
 sol = solve(prob, Tsit5())
 @test sol[x .+ [y, 2y, 3y]] ≈ vcat.(getindex.((sol,), [x[1] + y, x[2] + 2y, x[3] + 3y])...)