diff --git a/Project.toml b/Project.toml
index b1d70194d3..7e15717b06 100644
--- a/Project.toml
+++ b/Project.toml
@@ -116,7 +116,7 @@ EnumX = "1.0.4"
 ExprTools = "0.1.10"
 FMI = "0.14"
 FindFirstFunctions = "1"
-ForwardDiff = "0.10.3"
+ForwardDiff = "0.10.3, 1"
 FunctionWrappers = "1.1"
 FunctionWrappersWrappers = "0.1"
 Graphs = "1.5.2"