diff --git a/test/Integrators_I/ode_event_tests.jl b/test/Integrators_I/ode_event_tests.jl
index d7d97b8485..0794fe258c 100644
--- a/test/Integrators_I/ode_event_tests.jl
+++ b/test/Integrators_I/ode_event_tests.jl
@@ -3,6 +3,7 @@ using OrdinaryDiffEq,
     SparseArrays,
     LinearAlgebra
 using OrdinaryDiffEqLinear, OrdinaryDiffEqLowOrderRK, OrdinaryDiffEqRosenbrock
+using SciMLOperators: MatrixOperator
 
 f = function (u, p, t)
     return -u + sin(-t)
diff --git a/test/Integrators_I/step_limiter_test.jl b/test/Integrators_I/step_limiter_test.jl
index ea5a4c40e9..c66de541a0 100644
--- a/test/Integrators_I/step_limiter_test.jl
+++ b/test/Integrators_I/step_limiter_test.jl
@@ -11,6 +11,7 @@ using OrdinaryDiffEqAdamsBashforthMoulton
 using OrdinaryDiffEqExtrapolation
 using OrdinaryDiffEqFIRK: AdaptiveRadau, RadauIIA9, RadauIIA5, RadauIIA3
 using LinearAlgebra
+using SciMLOperators: MatrixOperator
 
 # define the counting variable
 const STEP_LIMITER_VAR = Ref(0)