diff --git a/test/Project.toml b/test/Project.toml
index b0713a61..715c9b2f 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -18,7 +18,7 @@ BandedMatrices = "1"
 DiffEqCallbacks = "2.35, 3, 4"
 ForwardDiff = "0.10.19, 1"
 Optim = "1.7.5, 2"
-OrdinaryDiffEqSSPRK = "1.5"
+OrdinaryDiffEqSSPRK = "1.5, 2"
 SpecialFunctions = "1, 2"
 StaticArrays = "1.9.8"
 StructArrays = "0.6.17, 0.7"