Update Project.toml

Author: ChrisRackauckas

Project.toml

@@ -85,7 +85,7 @@ RecipesBase = "1.3.4"
 RecursiveArrayTools = "3.27.2"
 Reexport = "1"
 RuntimeGeneratedFunctions = "0.5.12"
-SciMLOperators = "1"
+SciMLOperators = "0.4, 1"
 SciMLStructures = "1.1"
 StableRNGs = "1.0"
 StaticArrays = "1.7"