diff --git a/test/python/pythoncall.jl b/test/python/pythoncall.jl
index f2e8ec427..8d4e71236 100644
--- a/test/python/pythoncall.jl
+++ b/test/python/pythoncall.jl
@@ -79,6 +79,6 @@ using DifferentialEquations, PythonCall
 end
 
 @testset "promotion" begin
-    _u0 = pyeval("""de.prepare_initial_state([1.0, 0, 0])""", @__MODULE__)
+    _u0 = pyeval("""de.SciMLBase.prepare_initial_state([1.0, 0, 0])""", @__MODULE__)
     @test _u0 isa Vector{Float64}
 end