diff --git a/Project.toml b/Project.toml
index 26a70fb..02ed630 100644
--- a/Project.toml
+++ b/Project.toml
@@ -9,6 +9,9 @@ Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 StatsBase = "2913bbd2-ae8a-5f71-8c99-4fb6c76f3a91"
 StructTypes = "856f2bd8-1eba-4b0a-8007-ebc267875bd4"
 
+[compat]
+StatsBase = "0.33"
+
 [extras]
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"