diff --git a/test/downstream/Project.toml b/test/downstream/Project.toml
index b4adf6b1c..d6aef9683 100644
--- a/test/downstream/Project.toml
+++ b/test/downstream/Project.toml
@@ -34,7 +34,7 @@ BoundaryValueDiffEq = "5"
 DataFrames = "1.6"
 DelayDiffEq = "5"
 DiffEqCallbacks = "3, 4"
-ForwardDiff = "0.10"
+ForwardDiff = "0.10, 1"
 JumpProcesses = "9.10"
 ModelingToolkit = "9.64.3"
 ModelingToolkitStandardLibrary = "2.7"