diff --git a/Hamiltonian.jl b/Hamiltonian.jl
index 9a6fd73..68547dc 100644
--- a/Hamiltonian.jl
+++ b/Hamiltonian.jl
@@ -140,8 +140,8 @@ function eig(H::Hamiltonian{T}, levels::Int; resonances = !H.hermitian)::Tuple{V
         x₀ = CUDA.rand(Complex{T}, vectorDims(H)...)
         synchronize()
     end
-    evals, evecs, info = eigsolve(H, x₀, levels, resonances ? :LI : :SR; ishermitian = H.hermitian, tol = tolerance, krylovdim = levels * 2)
-    resonances || info.converged < levels && throw(error("Not enough convergence")) # don't check convergence for resonances
+    evals, evecs, info = eigsolve(H, x₀, levels, resonances ? :LI : :SR; ishermitian = H.hermitian, tol = tolerance, krylovdim = levels * 4)
+    info.converged < levels && throw(error("Not enough convergence"))
     if H.hermitian evals = real.(evals) end
     if H.mode == gpu_cutensor # to avoid possible GPU memory leak
         CUDA.reclaim()