diff --git a/docs/Project.toml b/docs/Project.toml
index ba0f6f4abc..c051de4de2 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -25,6 +25,7 @@ CondaPkg = "0.2"
 DiffEqCallbacks = "2"
 Distributions = "0.22.6, 0.23, 0.24, 0.25"
 Documenter = "1"
+DocumenterCitations = "1.2.1"
 FiniteDifferences = "0.12"
 Graphs = "1.4"
 HybridArrays = "0.4"