diff --git a/test/Project.toml b/test/Project.toml
index 3fe1adbc..d6fdddb6 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -36,7 +36,7 @@ Enzyme = "0.13.12"
 EnzymeTestUtils = "0.2.1"
 FillArrays = "1"
 FiniteDifferences = "0.11, 0.12"
-ForwardDiff = "0.10.12"
+ForwardDiff = "0.10.12, 1"
 Functors = "0.1, 0.2, 0.3, 0.4, 0.5"
 InverseFunctions = "0.1"
 LazyArrays = "1, 2"