diff --git a/benchmarks/MethodOfLinesPDE/Project.toml b/benchmarks/MethodOfLinesPDE/Project.toml
index 8e0679a86..434949b53 100644
--- a/benchmarks/MethodOfLinesPDE/Project.toml
+++ b/benchmarks/MethodOfLinesPDE/Project.toml
@@ -22,4 +22,4 @@ PDESystemLibrary = "0.1"
 Plots = "1"
 RecursiveFactorization = "0.2.23"
 SciMLBenchmarks = "0.1"
-Sundials = "4"
+Sundials = "4, 5"