diff --git a/Project.toml b/Project.toml
index e28bc99..93d763c 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "ITensorMPS"
 uuid = "0d1a4710-d33b-49a5-8f18-73bdf49b47e2"
 authors = ["Matthew Fishman <mfishman@flatironinstitute.org>", "Miles Stoudenmire <mstoudenmire@flatironinstitute.org>"]
-version = "0.3.18"
+version = "0.3.19"
 
 [deps]
 Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"
diff --git a/src/solvers/sweep_update.jl b/src/solvers/sweep_update.jl
index ac6cc24..9fc0100 100644
--- a/src/solvers/sweep_update.jl
+++ b/src/solvers/sweep_update.jl
@@ -414,7 +414,7 @@ function region_update!(
   ortho = isforward(direction) ? "left" : "right"
   drho = nothing
   if noise > 0.0 && isforward(direction)
-    drho = noise * noiseterm(reduced_operator, phi, ortho)
+    drho = noise * noiseterm(reduced_operator, reduced_state, ortho)
   end
   spec = replacebond!(
     state,
diff --git a/src/solvers/tdvp.jl b/src/solvers/tdvp.jl
index 02d8c5c..7510e26 100644
--- a/src/solvers/tdvp.jl
+++ b/src/solvers/tdvp.jl
@@ -80,8 +80,12 @@ function tdvp(
   nsteps=nsweeps,
   (step_observer!)=default_sweep_observer(),
   (sweep_observer!)=(step_observer!),
+  noise=nothing,
   kwargs...,
 )
+  if !isnothing(noise)
+    error("`noise` is not supported in `tdvp` right now.")
+  end
   time_step, nsteps = time_step_and_nsteps(t, time_step, nsteps)
   return alternating_update(
     operator,
diff --git a/test/base/test_dmrg.jl b/test/base/test_dmrg.jl
index 28affb7..ecbafa0 100644
--- a/test/base/test_dmrg.jl
+++ b/test/base/test_dmrg.jl
@@ -1,5 +1,32 @@
 using ITensors, Test, Random
-using ITensorMPS: dmrg, nsite, set_nsite!, siteinds, site_range
+using ITensorMPS:
+  DMRGObserver,
+  MPO,
+  MPS,
+  OpSum,
+  ProjMPO,
+  ProjMPOSum,
+  Sweeps,
+  add!,
+  cutoff!,
+  dmrg,
+  energies,
+  linkdim,
+  maxdim!,
+  measurements,
+  mindim!,
+  noise!,
+  nsite,
+  op,
+  orthogonalize!,
+  position!,
+  random_mps,
+  rproj,
+  set_nsite!,
+  siteind,
+  siteinds,
+  site_range,
+  truncerrors
 
 @testset "Basic DMRG" begin
   @testset "Spin-one Heisenberg" begin