diff --git a/Project.toml b/Project.toml
index 057da5b..071fd97 100644
--- a/Project.toml
+++ b/Project.toml
@@ -32,7 +32,7 @@ ForwardDiff = "0.10"
 Interpolations = "0.13"
 LoopVectorization = "0.12"
 NumericalIntegration = "0.3.2"
-OrdinaryDiffEq = "5"
+OrdinaryDiffEq = "5, 6.0"
 Roots = "1"
 Setfield = "0.5, 0.6, 0.7, 0.8"
 SparseDiffTools = "1"