diff --git a/Project.toml b/Project.toml
index 06eda12a..85a4f4d8 100644
--- a/Project.toml
+++ b/Project.toml
@@ -28,7 +28,7 @@ ComplexityMeasures = "3.6"
 Copulas = "0.1.22"
 Distributions = "0.25.87"
 FFTW = "1.3"
-ForwardDiff = "0.10.24"
+ForwardDiff = "0.10.24, 1"
 KernelDensity = "0.6.4"
 LinearAlgebra = "<0.0.1, 1"
 OrdinaryDiffEq = "6.62"