diff --git a/Project.toml b/Project.toml
index e0b0a79..e1dcdd3 100644
--- a/Project.toml
+++ b/Project.toml
@@ -9,6 +9,7 @@ MechanicalUnits = "e6be9192-89dc-11e9-36e6-5dbcb28f419e"
 Unitfu = "5ee08b94-2369-4f4a-b8c7-99333ba35fb0"
 
 [compat]
+DiffEqBase = "6.58"
 julia = "1"
 
 [extras]