diff --git a/benchmarks/StiffODE/Project.toml b/benchmarks/StiffODE/Project.toml
index b65c99aca..3263d9645 100644
--- a/benchmarks/StiffODE/Project.toml
+++ b/benchmarks/StiffODE/Project.toml
@@ -43,5 +43,5 @@ RecursiveFactorization = "0.2.23"
 SciMLBenchmarks = "0.1"
 StaticArrays = "1"
 Sundials = "4.2, 5"
-Symbolics = "5, 6"
+Symbolics = "5, 6, 7"
 TimerOutputs = "0.5"