diff --git a/Project.toml b/Project.toml
index 9001c84a..8b3d14a2 100644
--- a/Project.toml
+++ b/Project.toml
@@ -35,7 +35,7 @@ OrdinaryDiffEq = "5, 6"
 QuantumOpticsBase = "0.3, 0.4, 0.5"
 RecursiveArrayTools = "2, 3"
 Reexport = "0.2, 1.0"
-StochasticDiffEq = "6"
+StochasticDiffEq = "6, 6.68.0"
 WignerSymbols = "1, 2"
 julia = "1.10"