diff --git a/DifferentiationInterfaceTest/test/Project.toml b/DifferentiationInterfaceTest/test/Project.toml
index 2b439cfd4..ef0387059 100644
--- a/DifferentiationInterfaceTest/test/Project.toml
+++ b/DifferentiationInterfaceTest/test/Project.toml
@@ -24,5 +24,6 @@ Zygote = "e88e6eb3-aa80-5325-afca-941959d7151f"
 Aqua = "0.8.12"
 ExplicitImports = "1.10.1"
 FiniteDiff = "2.27.0"
+ForwardDiff = "1"
 SparseConnectivityTracer = "0.5.0,0.6,1"
 SparseMatrixColorings = "0.4.9"