diff --git a/Project.toml b/Project.toml
index 27494738..89547bb6 100644
--- a/Project.toml
+++ b/Project.toml
@@ -24,7 +24,7 @@ AMDGPU = "2"
 CTBase = "0.29, 0.30"
 CTModels = "0.18, 0.19"
 CTParser = "0.9"
-CTSolvers = "0.5"
+CTSolvers = "0.6"
 CUDA = "6"
 CUDSS = "0.8"
 CommonSolve = "0.2"
diff --git a/test/ci/test_all_ocp.jl b/test/ci/test_all_ocp.jl
index 482e2276..bc00387e 100644
--- a/test/ci/test_all_ocp.jl
+++ b/test/ci/test_all_ocp.jl
@@ -85,15 +85,14 @@ end
 # Deterministic on the Julia 1.12 CI runners, flaky on 1.10.
 # Upstream: JuliaSmoothOptimizers/ADNLPModels.jl#383
 
-#if !isdefined(Main, :moonlander)
-#    include("../problems/moonlander.jl")
-#end
-#@testset verbose = true showtiming = true ":moonlander" begin
-#    test_problem(moonlander(); adnlp_backend=:manual)
-#end
+if !isdefined(Main, :moonlander)
+    include("../problems/moonlander.jl")
+end
+@testset verbose = true showtiming = true ":moonlander" begin
+    test_problem(moonlander(); display=true)
+end
 
 
-# NB: the ":quadrotor" testset below always ran moonlander() (copy-paste slip) --
 # quadrotor
 if !isdefined(Main, :quadrotor)
      include("../problems/quadrotor.jl")
diff --git a/test/manual_test.jl b/test/manual_test.jl
index 0f15ed58..a7417034 100644
--- a/test/manual_test.jl
+++ b/test/manual_test.jl
@@ -6,11 +6,12 @@ include("test_common.jl")
 include("./problems/beam.jl")
 include("./problems/goddard.jl")
 include("./problems/double_integrator.jl")
+include("./problems/moonlander.jl")
 include("./problems/truck_trailer.jl")
 
-sol = solve_problem(goddard(); display=true, scheme=:gauss_legendre_2)
-sol1 = solve_problem(goddard(); display=true, scheme=:gauss_legendre_2, adnlp_backend=:manual)
-sol2 = solve_problem(goddard(); display=true, scheme=:gauss_legendre_2_constant_control, adnlp_backend=:manual)
+sol = solve_problem(moonlander(); display=true)
+sol1 = solve_problem(moonlander(); display=true, adnlp_backend=:manual)
+
 
 
 #=sol0 = solve_problem(truck_trailer(); display=false)
@@ -25,4 +26,4 @@ println("J ", objective(sol2), " tf ", variable(sol2))
 # cf https://github.com/JuliaSmoothOptimizers/ADNLPModels.jl/issues/280
 # even then we get errors...
 #sol3 = solve_problem(double_integrator_minenergy(); discretizer=:direct_shooting, 
-#scheme=:variable, grid_size=10, display=true, backend=:generic)
\ No newline at end of file
+#scheme=:variable, grid_size=10, display=true, backend=:generic)