diff --git a/docs/Project.toml b/docs/Project.toml
index 9ebc266..b3cf998 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -19,7 +19,7 @@ Documenter = "1"
 ForwardDiff = "0.10"
 ModelingToolkit = "9"
 ModelingToolkitStandardLibrary = "2"
-OrdinaryDiffEq = "=6.74.1"
+OrdinaryDiffEq = "=6.74.1, 6"
 Plots = "1"
 Setfield = "1"
 Sundials = "4"