diff --git a/Project.toml b/Project.toml
index 5113f05bc..b2051465b 100644
--- a/Project.toml
+++ b/Project.toml
@@ -24,7 +24,7 @@ Aqua = "0.5"
 ControlSystemsBase = "1.3"
 DelayDiffEq = "5.31"
 DiffEqCallbacks = "2.16, 3, 4"
-ForwardDiff = "0.10"
+ForwardDiff = "0.10, 1"
 Hungarian = "0.6, 0.7"
 OrdinaryDiffEq = "6.60"
 RecipesBase = "1"