diff --git a/test/downstream/Project.toml b/test/downstream/Project.toml
index 4a6cb0368..0d63423c1 100644
--- a/test/downstream/Project.toml
+++ b/test/downstream/Project.toml
@@ -55,7 +55,7 @@ StochasticDelayDiffEq = "1"
 StochasticDiffEq = "6"
 Sundials = "4.11"
 SymbolicIndexingInterface = "0.3"
-SymbolicUtils = "<1.6, 2, 3"
+SymbolicUtils = "<1.6, 2, 3, 4"
 Tables = "1"
 Unitful = "1.12"
 Zygote = "0.6, 0.7"