diff --git a/Project.toml b/Project.toml
index 6a3a41dd3..790c4a91f 100644
--- a/Project.toml
+++ b/Project.toml
@@ -31,6 +31,7 @@ Reexport = "0.2, 1"
 SciMLBase = "1.73"
 SimpleNonlinearSolve = "0.1"
 SnoopPrecompile = "1"
+SparseDiffTools = "1"
 StaticArraysCore = "1.4"
 UnPack = "1.0"
 julia = "1.6"