diff --git a/benchmarks/AstroChem/Project.toml b/benchmarks/AstroChem/Project.toml
index 55c406bc0..8b36869f8 100644
--- a/benchmarks/AstroChem/Project.toml
+++ b/benchmarks/AstroChem/Project.toml
@@ -26,3 +26,4 @@ OrdinaryDiffEqCore = "1"
 ODEInterfaceDiffEq = "3"
 Plots = "1"
 Sundials = "4"
+Symbolics = "6"