diff --git a/docs/Project.toml b/docs/Project.toml
index d5d872a5e..d5d0545f8 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -65,6 +65,7 @@ Plots = "1"
 RecursiveArrayTools = "2"
 SDEProblemLibrary = "0.1"
 SciMLBase = "2"
+SciMLOperators = "0.3"
 StaticArrays = "1"
 Sundials = "4.11.3"
 Symbolics = "4, 5"