diff --git a/Project.toml b/Project.toml
index d62367e..399b800 100644
--- a/Project.toml
+++ b/Project.toml
@@ -18,6 +18,7 @@ Sleipnir = "f5e6c550-199f-11ee-3608-394420200519"
 Tullio = "bc48ee85-29a4-5162-ae0b-a64e1601d4bc"
 
 [compat]
+OrdinaryDiffEq = "6"
 ProgressMeter = "1"
 PlotThemes = "3"
 Infiltrator = "1"