diff --git a/src/CriticalTransitions.jl b/src/CriticalTransitions.jl
index dffb356..526af9b 100644
--- a/src/CriticalTransitions.jl
+++ b/src/CriticalTransitions.jl
@@ -21,7 +21,6 @@ using StochasticDiffEq:
     u_modified!
 using DynamicalSystemsBase:
     DynamicalSystemsBase,
-    ContinuousTimeDynamicalSystem,
     CoupledSDEs,
     CoupledODEs,
     dynamic_rule,
diff --git a/src/RateSystem.jl b/src/RateSystem.jl
index 8046b9b..b2dd11e 100644
--- a/src/RateSystem.jl
+++ b/src/RateSystem.jl
@@ -6,7 +6,7 @@
 
 function RateSystem(tni,tnf,f,λ,p_λ,initvals)
     func(u,p,t) = combined_system(u,t,tni,tnf,f,λ,p_λ);
-    return ContinuousTimeDynamicalSystem(func, initvals, Float64[], t0=tni)
+    return CoupledODEs(func, initvals, Float64[], t0=tni)
 end
 
 function combined_system(u,t,tni,tnf,f,λ,p_λ)