diff --git a/Project.toml b/Project.toml
index ce7fb88..5f6f44f 100644
--- a/Project.toml
+++ b/Project.toml
@@ -47,7 +47,7 @@ ModelingToolkit = "8"
 Optim = "1.0"
 PDMats = "0.11"
 Parameters = "0.12"
-RecursiveArrayTools = "1,2"
+RecursiveArrayTools = "1,2, 3"
 Reexport = "1.0"
 Requires = "1.0"
 StanSample = "6, 7"