diff --git a/Project.toml b/Project.toml
index 5315a26..ba49b9a 100644
--- a/Project.toml
+++ b/Project.toml
@@ -13,7 +13,7 @@ Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 [compat]
 AbstractMCMC = "0.5"
 ArrayInterface = "2"
-Distributions = "0.22"
+Distributions = "0.22, 0.23"
 julia = "1"
 
 [extras]