diff --git a/Project.toml b/Project.toml
index ebb2f13aa..43053b132 100644
--- a/Project.toml
+++ b/Project.toml
@@ -28,7 +28,7 @@ KLU = "^0.6"
 LineSearches = "7.4.0"
 LinearAlgebra = "1"
 Logging = "1"
-PowerNetworkMatrices = "^0.20"
+PowerNetworkMatrices = "^0.21"
 PowerSystems = "5.5"
 SparseArrays = "1"
 StaticArrays = "1.9.13"