diff --git a/Project.toml b/Project.toml
index 78329311..7bb24264 100644
--- a/Project.toml
+++ b/Project.toml
@@ -44,6 +44,7 @@ Enzyme = "0.11"
 FiniteDiff = "2.8.1"
 ForwardDiff = "0.10"
 Graphs = "1"
+PackageExtensionCompat = "1"
 Reexport = "1"
 SciMLOperators = "0.2.11, 0.3"
 Setfield = "1"