diff --git a/Project.toml b/Project.toml
index 92e34df..ac7e7fd 100644
--- a/Project.toml
+++ b/Project.toml
@@ -13,7 +13,7 @@ StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
 [compat]
 ChainRulesCore = "1"
 ConstructionBase = "1"
-ForwardDiff = "0.10"
+ForwardDiff = "0.10, 1"
 LinearAlgebra = "1"
 Static = "0.6, 0.7, 0.8, 1"
 StaticArrays = "0.12, 1.0"