diff --git a/docs/Project.toml b/docs/Project.toml
index 0a8dcb6e..02af85a1 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -13,10 +13,12 @@ Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
 PyPlot = "d330b81b-6aea-500a-939a-2ce795aea3ee"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
+StatsFuns = "4c63d2b9-4356-54db-8cca-17b64c39e42c"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [compat]
+Distributions = "^0.25"
 Documenter = "0.27.24"
 Literate = "2.8"
 Plots = "^1.3.3"
-Distributions = "^0.25"
+StatsFuns = "^1.3"