diff --git a/Project.toml b/Project.toml
index debacba..e07a05e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -30,7 +30,7 @@ DiffEqNoiseProcess = "5.23.0"
 FFTW = "1"
 ForwardDiff = "0.10"
 IterativeSolvers = "0.9"
-KrylovKit = "0.6, 0.7"
+KrylovKit = "0.6, 0.7, 0.8"
 LinearMaps = "3"
 OrdinaryDiffEq = "5, 6"
 QuantumOpticsBase = "0.3, 0.4, 0.5"