diff --git a/Project.toml b/Project.toml
index d3811cc3..3ab9ff79 100644
--- a/Project.toml
+++ b/Project.toml
@@ -33,6 +33,7 @@ ImplicitAD = "0.3"
 IterativeSolvers = "0.9"
 LineSearches = "7"
 NLsolve = "4"
+PreallocationTools = "0.4"
 Primes = "0.5"
 QuadGK = "2"
 SimpleNonlinearSolve = "1"