diff --git a/Project.toml b/Project.toml
index 408325c..d9415ae 100644
--- a/Project.toml
+++ b/Project.toml
@@ -56,7 +56,7 @@ IterativeSolvers = "0.8, 0.9"
 LineSearches = "7"
 LinearAlgebra = "1"
 LinearMaps = "3"
-LinearSolve = "2, 3"
+LinearSolve = "2, 3, 4"
 Optim = "1.12, 2"
 OptimizationBase = "3.3, 4, 5"
 PDMats = "0.11.5"