diff --git a/Project.toml b/Project.toml
index db66355..91e11a7 100644
--- a/Project.toml
+++ b/Project.toml
@@ -23,7 +23,7 @@ DistributionFitsOptimExt = "Optim"
 Distributions = "0.25.102"
 FillArrays = "1"
 LinearAlgebra = "1.10"
-Optim = "1.7"
+Optim = "1.7, 2.0"
 Reexport = "1.2"
 StaticArrays = "1.2"
 Statistics = "1.10"