diff --git a/test/Project.toml b/test/Project.toml
index 8651b3d4d22..251f911072d 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -38,7 +38,7 @@ Downloads = "1"
 ECOS = "1.1.2"
 ExplicitImports = "1.0.1"
 FFMPEG = "0.4"
-ForwardDiff = "0.10.36"
+ForwardDiff = "0.10.36, 1"
 LinearAlgebra = "1"
 MPI = "0.20.6"
 NLsolve = "4.5.1"